cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
How the Media Places Responsibility for the COVID-19 Pandemic—An Australian Media Analysis
Creators: name: Ward, Paul
Publisher: name: Torrens University Australia
Year: 2023
Subjects: Health promotion

description: Global pandemics are likely to increase in frequency and severity, and media communication of key messages represents an important mediator of the behavior of individuals in response to public health countermeasures. Where the media places responsibility during a pandemic is therefore important to study as blame is commonly used as a tool to influence public behavior but can also lead to the subjective persecution of groups. The aim of this paper is to investigate where the media places responsibility for COVID-19 in Australia. Specifically, we identify the key themes and frames that are present and observe how they changed over the course of the COVID-19 pandemic in relation to government actions and progression of the pandemic. Understanding media representations of the COVID-19 pandemic will provide insights into ways in which responsibility is framed in relation to health action. Newspaper articles from the Australian and the Sydney Morning Herald were sampled between January 20 and March 31 2020 on every second Monday. Factiva was used to identify and download newspaper articles using the following search criteria: “COVID-19” OR coronavirus OR “Wuhan virus” OR “corona virus” OR “Hebei virus” OR “wet market” OR (Wuhan AND virus) OR (market AND Wuhan and virus) or (China AND Virus) or (Novel AND Virus). Articles were imported into Nvivo and thematic and framing analyses were used. The results show that framing of the pandemic was largely based on societal issues with the theme of economic disruption prevalent throughout the study time period. Moral evaluations of the pandemic were infrequent initially but increased co-incident with the first signs of “flattening of the curve.” Explicit examples of blame were very rare but were commonly implied based on the causal origin of the virus. The Australian printed media were slow to report on the COVID-19 pandemic, in addition they were reluctant to apportion blame until the end of the study period, after confirmed case rates had begun to slow. This is interpreted as being due to an evaluation of the pandemic risks as low by the media and therefore the tools of othering and blame were not used until after the study period when the actual risks had begun to abate, more consistent with an inquiry than a mediating mechanism.
Optimized Kernel Entropy Components
Creators: name: Izquierdo-Verdiguier, Emma
name: Laparra, Valero
name: Jenssen, Robert
name: Gómez-Chova, Luis
name: Camps-Valls, Gustau
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This work addresses two main issues of the standard Kernel Entropy Component Analysis (KECA) algorithm: the optimization of the kernel decomposition and the optimization of the Gaussian kernel parameter. KECA roughly reduces to a sorting of the importance of kernel eigenvectors by entropy instead of by variance as in Kernel Principal Components Analysis. In this work, we propose an extension of the KECA method, named Optimized KECA (OKECA), that directly extracts the optimal features retaining most of the data entropy by means of compacting the information in very few features (often in just one or two). The proposed method produces features which have higher expressive power. In particular, it is based on the Independent Component Analysis (ICA) framework, and introduces an extra rotation to the eigen-decomposition, which is optimized via gradient ascent search. This maximum entropy preservation suggests that OKECA features are more efficient than KECA features for density estimation. In addition, a critical issue in both methods is the selection of the kernel parameter since it critically affects the resulting performance. Here we analyze the most common kernel length-scale selection criteria. Results of both methods are illustrated in different synthetic and real problems. Results show that 1) OKECA returns projections with more expressive power than KECA, 2) the most successful rule for estimating the kernel parameter is based on maximum likelihood, and 3) OKECA is more robust to the selection of the length-scale parameter in kernel density estimation.
description: IEEE Transactions on Neural Networks and Learning Systems, 2016
Accelerated Ageing and Luminescence of CIGS Solar Cells
Creators: name: Ott, T.
name: Mack, P.
name: Trudel, F.
name: Schulz, Y.
name: Walter, T.
name: Hariskos, D.
name: Kiowski, O.
name: Schäffler, R.
Publisher: name: WIP
Year: 2011
Subjects: Thin Film Solar Cells
CIS and Related Ternary and Quaternary Thin Film Solar Cells

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 2421-2424
description: An important point for the future of CIGS solar cells is to understand the impact of the metastable
behavior to the long term stability. Accelerated ageing under open circuit conditions leads to a drop of open circuit
voltage. A decrease of the net doping density is responsible for the drop of the open circuit voltage and consequently
for the decrease of the photoluminescence. In the initial state the electroluminescence ideality factor exhibits a value
close to unity as expected from theory. After the dark anneal we observed an increase of the EL ideality factor. An
electroluminescence measurement at constant voltage shows a decrease of the electroluminescence. Both behaviors
are due to a pile up of negative charges at the hetero interface. The application of a positive bias or an illumination
during the endurance test leads to an optimization of the stability. This paper shows that photoluminescence and
electroluminescence are well suited for the detection of degradation mechanisms and can distinguish between bulk
and interface properties.
Interface Control by Self-Assembled Monolayers in Si Heterojunction Solar Cells
Creators: name: Liu, C.S.
name: Wu, J.-C.
name: Shiu, S.-H.
name: Tai, Y.
name: Hong, L.-S.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2218-2220
description: Organosilane self-assembled monolayers (SAMs) have been applied as a modification layer in the Si
heterojunction structured solar cells. The SAM was prepared using silanization method on n-type Si wafers followed
by an intrinsic amorphous Si layer deposition by plasma-enhanced chemical vapor deposition (PECVD) at a low
substrate temperature of 373K to form an a-Si:H/SAM/c-Si multiple interface. The bonding of SAM on the Si surface
was confirmed by contact angle observation and X-ray photoelectron spectroscopy. The effects of introducing SAMs
on the Si heterojunction were evaluated at two aspects: crystallinity control for the subsequent amorphous Si layer
growth and surface dipole modification to assist minority carrier transport. Compared with the occurrence of epitaxial
growth of Si under an intended Si growth condition of PECVD using SiH4/H2 as the reactant gases, the film retained
amorphous characteristics when it was deposited on the Si wafers with a specific SAM (aminopropyl triethoxy silane).
On the other hand, SAMs with fluorine and amino groups which have been shown to gather holes and electrons,
respectively, have been applied as the modification layer for charge transport. Their effects on the minority carrier life
time for the a-Si:H/SAM/c-Si heterojunction were investigated.
Thin-Film Photovoltaics: An Overview
Creators: name: Konagai, M.
Publisher: name: WIP
Year: 2011
Subjects: Thin Film Solar Cells
Thin Film Crystalline Silicon Solar Cells

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 2301-2306
description: The present status and future prospects of amorphous Si (a-Si) thin-film solar cells, which are
expected to enter the stage of full-scale practical application, are first described. For a-Si single-junction solar cells,
the conversion efficiency of their large-area modules has now reached 6-8%, and their practical application to
megawatt solar systems has started. Meanwhile, the focus of R&D has been shifting to a-Si and microcrystalline Si
(μc-Si) tandem solar cells. Thus far, a-Si/μc-Si tandem solar cell modules with stabilized conversion efficiency
exceeding 10% have been reported. Triple-junction solar cells, whose target year for practical application is 2015 or
later, are also introduced, as well as innovative thin-film full-spectrum solar cells, whose target year of realization is
2030 or later. In addition, an overview of the recent status of Cu(InGa)Se2 (CIGS), CdTe, dye-sensitized and organic
semiconductor solar cells is presented.
Progress in the Development of Silicon Solar Cells for Six-Junction Tandem Stack Cells
Creators: name: Zin, N.S.
name: Blakers, A.
name: Everett, V.
name: Fong, K.C.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2225-2229
description: This paper presents the development of small (2.5 x 8.0 mm2) silicon solar cells, to be used in conjunction with
six-junction tandem device. PC1D, numerical modelling and quasi steady state photoconductance (QSSPC) measurement
were used to predict the targeted efficiency of silicon solar cells. Early batch of cells fabricated were associated with
problems of shunting, series resistance and high carrier recombination. Various techniques – junction isolation, pin-hole
analysis, diffusion drive-in, light-induced plating, lifetime degradation studies and implied-Voc - were used to improve the
performance of the solar cells.
The State of Oregon’s Renewable Energy Policies: Opportunities for Solar Manufacturing
Creators: name: Grainey, M.
Publisher: name: WIP-Munich
Year: 2010
Subjects: PV Taking Off: Large-scale Deployment
Programmes, Policies and Economics; National and International Initiatives Globally

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 5425-5427
description: The State of Oregon has adopted policies to address Climate Change, principally by increasing energy
efficiency and renewable energy. Use and development of solar energy is a key part of this strategy. To promote solar
energy Oregon has adopted a combination of financial incentives and regulatory requirements, including a new feed-in
tariff, one of the first of its kind in the United States. Oregon has also adopted policies to help create a business cluster
of solar manufacturing facilities in Oregon. This cluster now includes makers of major phases of solar component
development, such as ingots, wafers, cells, modules and thin-film panels, as well as supply chain providers. This paper
discusses what these policies are, how effective they have been, and how the policies to promote solar and other
renewable energy generally benefit and impact solar manufacturing.
The Current State of the PV Market, New RES Law in Greece
Creators: name: Tselepis, S.
Publisher: name: WIP-Munich
Year: 2010
Subjects: PV Taking Off: Large-scale Deployment
Programmes, Policies and Economics; National and International Initiatives Globally

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 5332-5335
description: This paper presents in short the recently introduced RES Law (3851/2010) for the simplification and promotion of
RES in Greece, the current state of the PV market, the achievements so far and the prospects in view of the new RES Law.
Several industrial PV manufacturing efforts are in place in Greece producing PV wafers, cells and modules. The most noted
efforts and the PV production capacity are presented.
Economic Analysis of Grid-Connected Photovoltaic Systems in Spain
Creators: name: Peña, R.
name: Díaz, P.
name: Amante, B.
Publisher: name: WIP-Munich
Year: 2010
Subjects: PV Taking Off: Large-scale Deployment
Programmes, Policies and Economics; National and International Initiatives Globally

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 5356-5358
description: The aim of this work is to present an economic analysis of Spanish photovoltaic market, evaluating the
influence of feed-in tariffs in the market growth rates over the last 5 years. Topics such as installed power, system
price, return on investment and payback time are reviewed. For this purpose, a software tool has been developed with
the capability of doing sensitivity analysis.
The influence of the framework established by Real Decreto 661/2007 and Real Decreto 1578/2008, together with
the economic situation in the country in the period 2007-2009, is especially dealt with.
SELURIS® Clean – Superior & ESH-Friendly Solution for In-Line P-Diffusion Pre- and Post-Treatment
Creators: name: Ferstl, B.
name: Braun, S.
name: Bebber, J.
name: Albering, H.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Manufacturing Issues and Processing

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 1648-1650
description: BASF introduces SELURIS® Clean, a new generation of ESH-friendly chemistry for improved
wettability, cleaning and passivation of solar cell wafers. SELURIS® Clean is non-foaming and is intended
mainly for the use along in-line doping. We present results of comparative dopant wetting tests on polycrystalline
wafers, which show outstanding wetting capability. This was achieved amongst others by
sophisticated selection of ingredients, thus providing homogeneous distribution of the dopant across the wafer
surface. We also present the significant improvement on cell performance, i.e. efficiency and fill factor, induced
by SELURIS® Clean.
High Accuracy, High Aspect Ratio Metallization on Silicon Solar Cells Using a Print on Print Process
Creators: name: Falcon, T.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Manufacturing Issues and Processing

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 1651-1655
description: One of the most fundamental losses in silicon solar cell efficiency, and therefore a serious obstacle to
achieving grid parity, is the shading of the wafer’s surface by the frontside metallization grid. It is now well
understood that the creation of higher aspect ratio frontside conductors will expose more silicon to sunlight, without
increasing the conductor’s electrical resistance, thereby enhancing conversion efficiency [1].
Whilst there are many viable technologies for creating such conductors, few of these have made it to high
volume manufacturing. One simple, but highly effective method is known as “Print on Print” or PoP. The technique
requires the printing of a second metallization grid directly on top of a previously printed and dried grid. This paper
will describe some of the most important aspects of PoP process development. Our approach will be to test various
screen mesh types, emulsion thicknesses, aperture widths, paste types and process parameters, thereby empirically
defining the optimum PoP process. The benchmark will be a standard (but high performance) single print process and
the results of this work will show measurable improvements in conductor aspect ratio and efficiency over the
benchmark.
Round-Robin-Test of Irradiance Sensors
Creators: name: Glotzbach, T.
name: Schulz, B.
name: Zehner, M.
name: Fritze, P.
name: Schlatterer, M.
name: Vodermayer, C.
name: Wotruba, G.
name: Mayer, M.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Components for PV Systems
Engineering and System Integration

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3144-3147
description: For the determination of the solar irradiation on a certain place different measuring devices exist. Since the various PV–technologies have a certain spectral sensitivity, the pyranometer is not able to accurately determine the solar energy yield of a particular PV system. For these purposes a better estimation can be achieved by using calibrated solar cells as irradiation sensors, which have the same cell technology as the PV system. The objective of this study is an analysis of different market calibrated solar cell sensors, in order to find deficits or advantages of the sensors. The experimental setup was chosen as a Round-Robin-Test (RRT) at two different locations (ISET e.V. Kassel and University of Applied Sciences Munich). The full evaluation of the measured data aims at comparing various sensors of different and same technologies. In addition, the differences in terms of locations will be examined.
How might diabetes organisations address diabetes-related stigma? Findings from a deliberative democratic case study
Creators: name: Ward, Paul
Publisher: name: Torrens University Australia
Year: 2023
Subjects: Health promotion

description: This study sought to identify how diabetes organisations conceptualize the problem of diabetes-related stigma and how this shapes the selection of stigma-reduction interventions. Methods: A qualitative deliberative democratic methodology was used to access an informed dialogue about what should be done by diabetes organisations to address diabetes-related stigma, drawing from the perspectives of board members, healthcare services staff, and communications and marketing staff from a single state-wide diabetes organisation in Australia (n = 25). Results: Participants navigated the stigma concept along two axes: one that drew attention to either disease attributes or personal moral attributes as the object of stigmatisation, and one that positioned stigma as an individual or structural problem. This shaped the selection of stigma-reduction interventions, which included interventions to: (i) reduce the prevalence of stigmatized attributes, (ii) correct misunderstandings about diabetes, (iii) modify representations of persons with diabetes, (iii) enhance coping amongst persons with diabetes and (iv) make healthcare more person-centred and democratic. Conclusion: This study identified several grievances with ‘diabetes-related stigma’, which are grievances that can be conceptualized and addressed at both individual and structural levels, and involve correcting misinformation about diabetes or challenging and communicating alternative representations of persons living with diabetes. Patient or Public Contribution: The organisation's management and board were consulted throughout all stages of research development, analysis and reporting. The information and vignettes presented to participants drew from illness narratives obtained from earlier research involving adults with type 2 diabetes. Research participants included adults with various diabetes types.
Challenge to 18% Efficiency with 30x30cm2-Sized Cu(InGa)(SeS)2 Submodules in Solar Frontier
Creators: name: Sugimoto, H.
name: Kawaguchi, Y.
name: Yasaki, Y.
name: Aramoto, T.
name: Tanaka, Y.
name: Hakuma, H.
name: Kuriyagawa, S.
name: Kushiya, K.
Publisher: name: WIP
Year: 2011
Subjects: Thin Film Solar Cells
CIS and Related Ternary and Quaternary Thin Film Solar Cells

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 2307-2310
description: An efficiency (Eff) of 17.2 % on a 30x30cm2-sized Cu(InGa)(SeS)2 (CIS-based) thin-film submodule
has been achieved. Trials to achieve the 18% Eff milestone have subsequently started. We are planning to achieve
this by light trapping enhancement, the introduction of new patterning techniques and circuit design optimization.
The light trapping enhancement by tuning the textured surfaces of the ZnO window layer demonstrates about 1.5%
increase in short circuit current density (Jsc). The new patterning methods show over 100 μm decrease in dead area
and contribute to about 3.0% increase in Jsc. A simulation for circuit design optimization assumes that over 18% Eff
would be realized by optimizing cell width after applying the light trapping enhancement and the new patterning
methods. For mass-production, 0.9GW CIS-based module fabrication plant of Solar Frontier reached full commercial
operation in July. We are continuously improving our production lines to achieve higher yield and Eff, with some
commercial modules already reaching over 14.5% aperture area Eff. The early 17.2 % Eff achievement and the
successful ramp up of GW-scale production dramatically accelerate Solar Frontier’s research & development and the
production roadmaps.
In2S3 Buffer Layer for Cu (InGa) Se2 Solar Cells Fabricated by a Nanoparticle-Coating Approach
Creators: name: Zhang, Y.
name: Ito, M.
name: Tamura, T.
name: Yamada, A.
Publisher: name: WIP
Year: 2011
Subjects: Thin Film Solar Cells
CIS and Related Ternary and Quaternary Thin Film Solar Cells

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 2425-2427
description: In2S3 is realized as an attractive buffer layer material to replace CdS because of its high transparency in
the wavelength region of 350-500 nm and low toxicity towards the environment. In this research, a nanoparticlecoating
approach is applied to prepare In2S3 buffer layers in Cu (InGa) Se2 solar cells for the first time. The effects of
annealing temperatures on the electric and optical characteristics of the In2S3 films are investigated. A best efficiency
of 10.0% CIGS solar cell was achieved at 275 C annealing temperature. The highest efficiency solar cell with the
In2S3 buffer layer exhibits a higher light absorption in the region of 350-500 nm than the reference cell with a CdS
layer.
Strong Cavity-Pseudospin Coupling in Monolayer Transition Metal Dichalcogenides: Spontaneous Spin-Oscillations and Magnetometry
Creators: name: De, Amrit
name: Lake, Roger
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Strong coupling between the electronic states of monolayer transition metal dichalcogenides (TMDC) such as MoS$_2$, MoSe$_2$, WS$_2$, or WSe$_2$, and a two-dimensional (2D) photonic cavity gives rise to several exotic effects. The Dirac type Hamiltonian for a 2D gapped semiconductor with large spin-orbit coupling facilitates pure Jaynes-Cummings type coupling in the presence of a single mode electric field. The presence of an additional circularly polarized beam of light gives rise to valley and spin dependent cavity-QED properties. The cavity causes the TMDC monolayer to act as an on-chip coherent light source and a spontaneous spin-oscillator. In addition, a TMDC monolayer in a cavity is a sensitive magnetic field sensor for an in-plane magnetic field.
Microstructure evolution of compressible granular systems under large deformations
Creators: name: Gonzalez, Marcial
name: Cuitino, Alberto M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report three-dimensional particle mechanics static calculations that predict the microstructure evolution during die-compaction of elastic spherical particles up to relative densities close to one. We employ a nonlocal contact formulation that remains predictive at high levels of confinement by removing the classical assumption that contacts between particles are formulated locally as independent pair-interactions. The approach demonstrates that the coordination number depends on the level of compressibility, i.e., on the Poisson's ratio, of the particles. Results also reveal that distributions of contact forces between particles and between particles and walls, although similar at jamming onset, are very different at full compaction. Particle-wall forces are in remarkable agreement with experimental measurements reported in the literature, providing a unifying framework for bridging experimental boundary observations with bulk behavior.
Independent Approaches to Increase Voltage and Current in Thin Crystalline Silicon Solar Cells
Creators: name: Barnett, A.
name: Hao, R.
name: Murcia, C.P.
name: Lochtefeld, A.
name: Leitz, C.
name: Gerger, A.
name: Curtin, M.
Publisher: name: WIP
Year: 2011
Subjects: Thin Film Solar Cells
Thin Film Crystalline Silicon Solar Cells

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 2443-2447
description: Thin silicon solar cells with epitaxial absorbers include critical surfaces and interfaces that should be
tested independently. The ability to test the solar cell and the optics independently will benefit the integration of
fabrication steps. In this work, the thin Si solar cell structure utilizes a reduced junction area based on epitaxial lateral
overgrowth (ELO). The design starts from a basic ELO solar cell structure with which we can separately study the
voltage as a function of the light generation area (AL) to p-n junction area (A0) ratio and geometry of the p-n junction.
The optical design we propose includes a metallic reflector on the back surface that will be accompanied by a front
texture. Parallel design, fabrication, testing and analysis will allow independent optimization of the back reflector.
ITO-nSi Solar Cells: Voltage Dependent Charge Transport Mechanisms
Creators: name: Simashkevich, A.
name: Sherban, D.
name: Rusu, M.
name: Bruc, L.
name: Usatyi, I.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2230-2232
description: Solar cells fabricated on the basis of semiconductor-insulator-semiconductor (SIS) structures were
obtained by the deposition of transparent conductive oxide ITO films onto silicon crystal substrates by spray
pyrolisys technique. The obtained in such a way structures may be considered as Schottky diodes with a thin
insulating SiO2 layer at the interface formed during the ITO layer deposition. The above mentioned method has
been used for the fabrication of solar cells with 9.57% efficiencies under standard AM 1.5 conditions. Bifacial solar
cells with a back surface field region at the rear contact were also fabricated. In this case the efficiencies are 9.47%
and 3.6% for the front and rear side illumination, respectively.
The investigation of I-V characteristics shows that in n+ITO/SiO2/nSi structures two mechanisms of the direct current
flow are present: (i) tunneling-recombination at direct voltages of less than 0.3 V and (ii) over-barrier emission at
voltages higher than 0.3 V. In the first case, the direct current flow could be interpreted as multi-steps tunnelrecombination
transitions of electrons from the silicon conduction band into ITO conduction band, the number of
steps being about 100. The calculated potential barrier height at the ITO-Si interface is about 0.6 eV, which is in
good agreement with the experimental data.
A Spanish CPV Regulatory Framework: Proposal of a Feed-In Tariff
Creators: name: Pérez-Higueras, P.J.
name: Muñoz-Cerón, E.
name: Almonacid, G.
name: Gómez Vidal, P.G.
name: Banda, P.
name: Luque-Heredia, I.
name: Valera, P.
name: Cabrerizo, M.
Publisher: name: WIP-Munich
Year: 2010
Subjects: PV Taking Off: Large-scale Deployment
Programmes, Policies and Economics; National and International Initiatives Globally

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 5421-5424
description: The recent research and field experiences in CPV systems have proved that this technology has present
and potential advantages when compared with other sources of energy. Despite of that, if this technology wants to
initiate its learning curve with the increment of the production and the consequent price reduction, it is necessary an
institutional support that allows this technology to compete against other sources of energy through the creation of a
favourable and attractive economic environment for potential investors to get interested in this new technology.
Nowadays, Spain is a world CPV referent. The research developed by some of its organism and the industrial
experience obtained in the past years through the installation of thousands of MW, is a guarantee of its scientific and
industrial potential.
The intention of this report is to justify the reasons to set aside a power cap of 10 MW in the Spanish PV
regulatory framework dedicated exclusively to CPV systems, and the increment of the feed-in tariff in 10.2 c€/kWh
over the present tariff and to reduce progressively this support in a 13% annual until it reaches the flat PV tariff.
Sensitivity Analysis on Some Profitability Indices for Photovoltaic Grid–Connected Systems on Buildings
Creators: name: Lopez Talavera, D.L.
name: Almonacid, G.
name: Nofuentes Garrido, G.
name: De La Casa Higueras, J.
name: Fuentes, M.
name: Ortega, M.J.
Publisher: name: WIP-Munich
Year: 2010
Subjects: PV Taking Off: Large-scale Deployment
Programmes, Policies and Economics; National and International Initiatives Globally

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 5351-5355
description: The integration of photovoltaic grid–connected systems (PVGCS) on buildings or public areas is one
of the most usual applications of the photovoltaic solar energy in developed countries. This is mainly due to the
governmental support programmes and policies launched by these countries and a continuous decrease trend in
photovoltaic (PV) cost. A favourable framework has been created for PV-generated electricity in some countries
(Spain, Germany, USA, Japan, among others) so that PVGCS on buildings is an attractive investment for private
investors and some other bodies. Despite this optimistic outlook, changes made in the regulation codes (supporting
systems, installed power, etc.), the PV technology evolution (initial investment, electricity yield per kWp) and
variations in parameters that determine a specific scenario (capital cost, annual inflation rate, taxes, etc.) make a
prospective owner of such a system require information concerning the economic feasibility and profitability of the
investment made on this system. Hence, an analysis of the main economic factors of PVGCS on building is
demanded, addressed to ascertain their influence on the profitability of these systems. In this paper it has been carried
out a sensitivity analysis of some profitability indices of investment proyects –IRR, NPV and DPBT– in two
scenarios.
Correlation Driven Transport Asymmetries Through Coupled Spins
Creators: name: Muenks, Matthias
name: Jacobson, Peter
name: Ternes, Markus
name: Kern, Klaus
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Correlation is a fundamental statistical measure of order in interacting quantum systems. In solids, electron correlations govern a diverse array of material classes and phenomena such as heavy fermion compounds, Hunds metals, high-Tc superconductors, and the Kondo effect. Spin-spin correlations, notably investigated by Kaufman and Onsager in the 1940s 6, are at the foundation of numerous theoretical models but are challenging to measure experimentally. Reciprocal space methods can map correlations, but at the single atom limit new experimental probes are needed. Here, we determine the correlations between a strongly hybridized spin impurity and its electron bath by varying the coupling to a second magnetic impurity in the junction of a scanning tunneling microscope. Electronic transport through these coupled spins reveals an asymmetry in the differential conductance reminiscent of spin-polarized transport in a magnetic field. We show that at zero field, this asymmetry can be controlled by the coupling strength and is directly related to either ferromagnetic (FM) or antiferromagnetic (AFM) spin-spin correlations.
description: 18 pages, 4 figures
The Influence of Front Contact and Buffer Layer Properties on CIGSe Solar Cell Breakdown Characteristics
Creators: name: Puttnins, S.
name: Jander, S.
name: Pelz, K.
name: Heinker, S.
name: Daume, F.
name: Rahm, A.
name: Braun, A.
name: Grundmann, M.
Publisher: name: WIP
Year: 2011
Subjects: Thin Film Solar Cells
CIS and Related Ternary and Quaternary Thin Film Solar Cells

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 2432-2434
description: The breakdown characteristics of flexible Cu(In,Ga)Se2 solar cells were analyzed with respect to the
influence of CdS buffer layer and ZnO:Al front contact layer deposition times. An increase of the CdS deposition
time from 6 min to 13.5 min increases the thermal break down voltage VBR from 4.3 to 6.5 V. In opposite to this a
decrease in ZnO:Al process time leads to robust and reversible breakdown characteristics with current densities up to
150 mA/cm2. This acts as an intrinsic bypass diode protecting the solar cell against damages caused by destructive
breakdowns. Both approaches promise to increase module stability and to reduce production cost as less bypass
diodes are needed to be assembled into the module.
A Novel Low Cost 25µm Thin Exfoliated Monocrystalline Si Solar Cell Technology
Creators: name: Rao, R.A.
name: Mathew, L.
name: Saha, S.
name: Smith, S.
name: Sarkar, D.
name: Garcia, R.
name: Stout, R.
name: Gurmu, A.
name: Ahn, D.
name: Xu, D.
name: Jawarani, D.
name: Onyegam, E.
name: Hilali, M.
name: Banerjee, S.
name: Fossum, J.
Publisher: name: WIP
Year: 2011
Subjects: Thin Film Solar Cells
Thin Film Crystalline Silicon Solar Cells

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 2439-2442
description: The crystalline silicon (c-Si) photovoltaic industry has continually pushed to reduce the active Si
content of c-Si solar cells through a combination of thinner wafers and increased cell efficiency. However, cell
manufacturers are struggling to reduce the wafer thickness below 150μm as there are no economically viable
technologies for manufacturing very thin Si wafers and such thin silicon wafers impose stringent handling
requirements as wafer breakage and yield loss impact final module cost. In this paper, we demonstrate a novel
exfoliation technology capable of producing wafer scale (8-in diameter) 25μm thin flexible mono c-Si foils using a
kerfless process that allows the parent wafer to be reused multiple times. An un-optimized cell with an efficiency of
12.5% has been formed using a front heterojunction and a diffused back surface field on a 25μm exfoliated c-Si foil.
Simulations show that with optimized passivation and texturing of the exfoliated foil, higher efficiencies (> 20%) can
be attained. Due to the significantly less Si consumed in the cell and the low cost process flow, the production cost of
the exfoliated solar cell can be as low as $0.26/Wp.
Monitoring Results and Performance Analysis in South Tyrol Under the Project Copes
Creators: name: Armani, M.
name: Mayr, T.
name: Cattani, D.
name: Del Buono, M.
name: Sparber, W.
name: Parretta, A.
name: Antonini, A.
name: Butturi, M.A.
name: Stefancich, M.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Components for PV Systems
Engineering and System Integration

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 3126-3128
description: This paper presents monitoring data and performance results of 12 photovoltaic systems installed in South Tyrol, which are based on different technologies, mainly crystalline and CdTe modules, and various dimension, from few kWp to more than 800 kWp. The target of the monitoring is an evaluation of performance ratio of the different systems, under the real regional climatic condition, for the benefit of installers and final users, and the
collection of data to allow a better understanding of loss mechanisms. This paper summarizes 18 months of monitoring results. The monitored data include current from the PV array, array voltage, AC power delivered, global horizontal irradiance and ambient temperature, obtained from 26 weather station scattered on the region, and array temperature. The purpose of this work is to compare and to present operational performance results of grid-connected PV systems, as collected and elaborated for the project CoPES; a cooperation project between applied research institutions and several SMEs.
The obtained results were used mainly as a feedback for the industry concerned with installation; besides that, selected results were used as a reference parameter for the validation of a new code for the efficiency prediction modeling of a PV module operating in outdoor conditions.
The Relation between Galaxy Structure and Spectral Type: Implications for the Buildup of the Quiescent Galaxy Population at 0.5
Creators: name: Yano, Michael
name: Kriek, Mariska
name: van der Wel, Arjen
name: Whitaker, Katherine
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the relation between galaxy structure and spectral type, using a K-selected galaxy sample at 0.51.5 and significantly smaller than all other galaxy types at the same redshift. This result suggests that the suppression of star formation may be associated with significant structural evolution at z>1.5. At z<1, galaxy types with intermediate sSFRs (10^{-11.5}-10^{-10.5} yr^-1) do not have post-starburst SED shapes. These galaxies have similar sizes as older quiescent galaxies, implying that they can passively evolve onto the quiescent sequence, without increasing the average size of the quiescent galaxy population.
description: 7 pages, 5 figures; Accepted for publication in ApJL
Insight into Electronic Transport and Interface Passivation in a-Si:H/c-Si Heterojunction Solar Cells by Temperature-Dependent I-V Characterization
Creators: name: Schulze, T.F.
name: Korte, L.
name: Von Maydell, K.
name: Schmidt, M.
name: Rech, B.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2213-2217
description: We present measurements of temperature-dependent dark I-V curves on (n)a-Si:H/(p)c-Si
heterojunction solar cells with varying doping concentration and with or without a back-surface field. From fitting of
the I-V data we obtain saturation current densities, activation energies and diode ideality factors which we analyze to
gain insight in the dominant transport regimes and the interface passivation. Flanking the dark I-V analysis with
photoluminescence, photoelectron spectroscopy and surface photovoltage data we show that upon raising the emitter
doping level above 2000 ppm, the interface passivation increasingly deteriorates and the Fermi level is pinned in the
interface defects.
Temperature Induced Degradation of the Contact Resistance of Ag-Screen Printed p-Type Silicon Solar Cells
Creators: name: Herguth, A.
name: Hahn, G.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2012-2014
description: This contribution targets on the stability of screen printed silver front contacts on n-type emitters of
crystalline silicon solar cells during thermal treatment steps in the range of 200-300°C which could be of importance
for e.g. some dielectric layers [1] or Regeneration [2]. As measurements of the contact resistance taken by TLM
technique reveal, the contact resistance may seriously increase within the thermal treatment steps giving rise to a
significant degradation of the fill factor of the solar cell. Furthermore it is found that the TLM technique itself has an
influence on the measurements.
Πως οι πετρελαϊκές τιμές επηρεάζουν τον πληθωρισμό σε χώρες της Ευρωζώνης
Creators: name: Βεγούδης, Ηλίας Στέργιου
Publisher: name: Aristotle University of Thessaloniki
Year: 2024
Subjects: Πληθωρισμός
Πετρελαϊκές τιμές
Ευρωζώνη
Inflation
Oil prices
Eurozone

description: Η παρούσα εργασία εξετάζει τη σχέση μεταξύ του πληθωρισμού και των τιμών του πετρελαίου, και συγκεκριμένα την επίδραση των πετρελαϊκών τιμών στον πληθωρισμό στις χώρες της Ευρωζώνης. Παρουσιάζεται η σχετική θεωρία και βιβλιογραφία, καθώς επίσης γίνονται δύο εμπειρικές μελέτες στις χώρες της Ευρωζώνης. Πρώτα εξετάζεται η μονομερή επίδραση μονάχα από τις τιμές του πετρελαίου. Στη συνέχεια, σε δεύτερο οικονομετρικό μοντέλο, προστίθενται δυο νέες ανεξάρτητες μεταβλητές στην εξίσωση, το ποσοστό της ανεργίας και το ποσοστό της κατανάλωσης ανανεώσιμης ενέργειας, ώστε να αντλήσουμε συμπεράσματα για το πόσο ισχυρή παραμένει η επίδραση των τιμών του πετρελαίου προς τον πληθωρισμό έπειτα αυτής της προσθήκης. Επαληθεύουμε την ύπαρξη της συνολοκλήρωσης στα μοντέλα μας. Αποδεικνύεται ότι υφίσταται μονομερής αιτιώδης σχέση από τις τιμές του πετρελαίου προς τον πληθωρισμό. Τέλος, βρίσκουμε τις δυναμικές σχέσεις με την πάροδο του χρόνου, τις βραχυχρόνιες και μακροχρόνιες σχέσεις ισορροπίας μέσω των κατάλληλων οικονομετρικών ελέγχων που μας επέτρεψε το πάνελ μας και συγκρίνουμε τα αποτελέσματα των δύο μοντέλων.
description: This paper examines the relationship between inflation and oil prices, and in particular the effect of oil prices on inflation in the Eurozone countries. Αt the beginning the relevant theory and literature is presented , and two empirical studies in Eurozone countries are also conducted. First, the unilateral effect of oil prices alone is examined. Then, in a second econometric model, two new independent variables are added to the equation, the unemployment rate and the share of renewable energy consumption, in order to draw conclusions on how strong the effect of oil prices on inflation remains after this addition. We verify the existence of cointegration in our models. We show that there is a one-way causal relationship from oil prices to inflation. Finally, we find the dynamic relationships over time, the short-run and long-run equilibrium relationships through the appropriate econometric tests allowed by our panel and compare the results of the two models.
Self-referencing of an on-chip soliton Kerr frequency comb without external broadening
Creators: name: Brasch, Victor
name: Lucas, Erwan
name: Jost, John D.
name: Geiselmann, Michael
name: Kippenberg, Tobias J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Self-referencing turns pulsed laser systems into self-referenced frequency combs. Such frequency combs allow counting of optical frequencies and have a wide range of applications. The required optical bandwidth to implement self-referencing is typically obtained via nonlinear broadening in optical fibers. Recent advances in the field of Kerr frequency combs have provided a path towards the development of compact frequency comb sources that provide broadband frequency combs, exhibit microwave repetition rates and that are compatible with on-chip photonic integration. These devices have the potential to significantly expand the use of frequency combs. Yet to date self-referencing of such Kerr frequency combs has only been attained by applying conventional, fiber based broadening techniques. Here we demonstrate external broadening-free self-referencing of a Kerr frequency comb. An optical spectrum that spans two-thirds of an octave is directly synthesized from a continuous wave laser-driven silicon nitride microresonator using temporal dissipative Kerr soliton formation and soliton Cherenkov radiation. Using this coherent bandwidth and two continuous wave transfer lasers in a 2f-3f self-referencing scheme, we are able to detect the offset frequency of the soliton Kerr frequency comb. By stabilizing the repetition rate to a radio frequency reference the self-referenced frequency comb is used to count and track the continuous wave pump laser's frequency. This work demonstrates the principal ability of soliton Kerr frequency combs to provide microwave-to-optical clockworks on a chip.
description: 6 pages, 4 figures
High Volume Industrial PECVD System for Inline Deposition of SIN:H on Solar Wafers
Creators: name: Heintze, M.
name: Fuchs, J.-U.
name: Stroisch, M.
name: Rechtsteiner, T.
name: Rehli, J.
name: Dahl, R.
name: Wanka, H.
name: Fath, P.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Manufacturing Issues and Processing

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 1656-1659
description: High throughput and low cost of ownership are major demands for the acceptance of new production tools
for solar cell fabrication. As a matter of course the quality should be as high as standard tools offer. We developed a new
industrial production tool for depositing SiN:H anti-reflective and passivating layers which satisfies these demands. For
this purpose we transferred the well known and field proven technology of centrotherm’s batch furnace CVD Tube
Reactor to an inline load-lock system for the processing of 3-dimensional wafer carriers, so called plasma-boats. The
new tool is a modular vacuum inline system which consists of different chambers for heating up/load-lock, processing
and cooling down/load-lock. This paper describes the concept of the new tool and reveals more details about it.
Moreover, a short review of our pre-coating system, which ideally supplements the main tool, is given. We also
produced solar cells with our new tool and compare the results with reference runs on tube furnaces. It is shown how the
homogeneity of the layer is evaluated.
The ERIЯƎ Theory – Temporal Emergence and Domain Ontogenesis
Creators: name: DanBrasilP
Publisher: name: GitHub
Year: 2025
Subjects: Time Geometry
ERIRE Theory
Temporal Ontogenesis
Rotational Coherence
TSR Domain
Relativistic Simulation
Ontological Physics
Atomic Clock

description: This article (Expansion 36 of the ERIЯƎ Theory) formalizes time as a dynamic result of coherence among internal geometric domains. The model introduces a vectorial conception of time that emerges from topological reorganization, not as an absolute parameter, but as a rotational transition. A simulation script validates relativistic temporal variations without using empirically adjusted constants. This ontological approach unifies quantum, relativistic, and topological time under a single coherent flow.
description: Este artigo (Expansão 36 da Teoria ERIЯƎ) formaliza o tempo como um resultado dinâmico da coerência entre domínios geométricos internos. O modelo introduz uma concepção vetorial de tempo que emerge da reorganização topológica, não como um parâmetro absoluto, mas como uma transição rotacional. Um script de simulação valida variações temporais relativísticas sem usar constantes ajustadas empiricamente. Essa abordagem ontológica unifica o tempo quântico, relativístico e topológico sob um único fluxo coerente.