cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
IDEAs Framework
Creators: name: Hack, Sarah
Publisher: name: National Teaching Repository
Year: 2023
Subjects: classificationCode: 390102
subject: Curriculum and pedagogy theory and development

description: The 'I.D.E.As framework' is a resource developed to help structure my thinking regarding using (Gen)AI tools in my learning and teaching. It is also a way for me to curate the brilliant ideas generously shared by others. I hope it may be useful both as a resource, and also a framework to help people curate resources specific to their own learning and teaching contexts.
Alkali Post-Deposition Treatment of Cu(In,Ga)(S,Se)2 Solar Cell Absorbers Grown under Atmospheric Pressure
Creators: name: Reyes-Figueroa, P.
name: Kodalle, T.
name: Bertram, T.
name: Villanueva-Tovar, A.
name: Waack, E.
name: Haberecht, R.
name: Kaufmann, C.A.
name: Schlatmann, R.
name: Klenk, R.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
CI(G)S, CdTe and Related Thin Films

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 718-721
description: This work presents the adaptation of post-deposition treatments with sodium fluoride and/or rubidium fluoride, as previously developed for our multi-source co-evaporated absorbers, to sequentially prepared Cu(In,Ga)(S,Se)2 (CIGSSe) thin-films using fast atmospheric pressure chalcogenization of sputtered precursors. The incorporation of the alkali metals into the films with different Cu/(Ga+In) (CGI) ratios and their effect on material and device properties is analyzed and compared to findings obtained for multi-source co-evaporated absorbers. It was found that a Mo(S,Se)X layer at the back contact of the sequentially prepared films possibly acts as a sink for alkali ions, leading to in-depth distributions of alkali metals that differ from those in absorbers prepared by co-evaporation. The best device results were obtained with a sequentially prepared CIGSSe sample with CGI=0.87, using a NaF followed by a RbF-PDT, and resulted in a maximum VOC ≈ 600 mV and a VOC deficit of around 400mV. Additionally, the FF was enhanced. Ultimately, by using photolithographic cell definition and a MgF2 anti-reflective coating, the NaF+RbF PDT resulted in solar cells with independently certified efficiencies of up to 18.4%, a significant improvement of the previous value without PDT. At this early development stage, these results demonstrate that the PDT is useful to exploit the potential of absorbers prepared by fast, vacuum-free processing.
CIGS Modules with Copper Plated Metallization
Creators: name: Lachowicz, A.
name: Nicolay, S.
name: Ballif, C.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
CI(G)S, CdTe and Related Thin Films

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 704-705
description: We present a process sequence for electrodeposition of copper on solar cells with aluminum zinc oxide (AZO) on the surface. The process has been originally developed for silicon heterojunction cells with indium tin oxide and comprises a sputtered seed layer and patterning by hotmelt inkjet printing. High efficiency of 24.7% has been achieved on industrial heterojunction cell precursors and excellent module stability confirmed in extended aging tests. This process has been adapted for cells having an aluminum zinc oxide electrode. Since AZO is chemically very sensitive the chemical composition of required processing solutions, and in particular for the etch-back of the seed layer, had to be modified to avoid AZO dissolution. Well adherent narrow copper lines have been realized on CIGS-AZO-surface and the fabrication of mini modules with copper electroplated grid is ongoing.
Photo-ionization of planetary winds: case study HD209458b
Creators: name: Schneiter, E. M.
name: Esquivel, A.
name: D'Angelo, C. S. Villarreal
name: Velazquez, P. F.
name: Raga, A. C.
name: Costa, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Close-in hot Jupiters are exposed to a tremendous photon flux that ionizes the neutral escaping material from the planet leaving an observable imprint that makes them an interesting laboratory for testing theoretical models. In this work we present 3D hydrodynamic simulations with radiation transfer calculations of a close-in exoplanet in a blow-off state. We calculate the Ly-$α$ absorption and compare it with observations of HD 209458b an previous simplified model results.Our results show that the hydrodynamic interaction together with a proper calculation of the photoionization proccess are able to reproduce the main features of the observed Ly-$α$ absorption, in particular at the blue-shifted wings of the line. We found that the ionizing stellar flux produce an almost linear effect on the amount of absorption in the wake. Varying the planetary mass loss rate and the radiation flux, we were able to reproduce the $10\%$ absorption observed at $-100~\mathrm{km~s^{-1}}$.
description: 9 pages, 6 figures
Cooperative Estimation for Synchronization of Heterogeneous Multi-Agent Systems Using Relative Information
Creators: name: Wu, Jingbo
name: Ugrinovskii, Valery
name: Allgöwer, Frank
Publisher: name: arXiv
Year: 2015
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we present a distributed estimation setup where local agents estimate their states from relative measurements received from their neighbours. In the case of heterogeneous multi-agent systems, where only relative measurements are available, this is of high relevance. The objective is to improve the scalability of the existing distributed estimation algorithms by restricting the agents to estimating only their local states and those of immediate neighbours. The presented estimation algorithm also guarantees robust performance against model and measurement disturbances. It is shown that it can be integrated into output synchronization algorithms.
description: The short version of this paper was published in Proc. IFAC World Congress, pp. 4662-4667, Cape Town, South Africa, 2014
Elaboration of Wide Bandgap CIGS on Silicon by Electrodeposition of Stacked Metal Precursors and Sulfur Annealing
Creators: name: Crossay, A.
name: Zerbo, B.F.C.
name: Cammilleri, D.
name: Rebai, A.
name: Barreau, N.
name: Lincot, D.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
CI(G)S, CdTe and Related Thin Films

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 706-709
description: In this work, we report on the development of a fabrication process of (Ag,Cu)(In,Ga)S2 (ACIGSu) directly on silicon, for future application as Silicon / ACIGSu tandem solar cells. The process consists in the electrodeposition of metallic precursors on (100) silicon, followed by a sulfur annealing. The precursors are prepared by first depositing a thin layer of Ag on the silicon’s surface. Cu, In and Ga are then sequentially electrodeposited, following a method which already proved to be very efficient on glass/Mo substrates. The electrodeposition process is very quick, the whole stack being deposited in less than three minutes. After optimization of the precursors composition, a sulfurized film with a composition of (Cu+Ag)/(In+Ga)=0.95 and Ga/(In+Ga)=0.3 was achieved, which is very close to the target composition for 1,7eV ACIGSu. The layer shows very good adhesion and density, and XRD measurements confirmed the phase to be ACIGSu together with CuGaS2, with spontaneous gradients of In, Ga and Ag. A further investigation of annealing parameters shows that tuning these gradients is possible with the temperature, and led to the formation at 700°C of an homogeneous ACIGSu layer with a luminescence peak at 1.8eV which is the target for a top cell absorber, confirming the strong potential of our approach for the synthesis of tandem Silicon / ACIGSu solar cells.
IDEAs framework (SH Sept 2023).pptx
Creators: name: Hack, Sarah
Publisher: name: National Teaching Repository
Year: 2023
Subjects: classificationCode: 390102
subject: Curriculum and pedagogy theory and development

description: The 'I.D.E.As framework' is a resource developed to help structure my thinkng regarding using (Gen)AI tools in my learning and teaching. It is also a way for me to curate the brilliant ideas generously shared by others. I hope it may be useful both as a resource, and also a framework to help people curate resources specific to their own learning and teaching contexts.
The COSINUS project - perspectives of a NaI scintillating calorimeter for dark matter search
Creators: name: Angloher, G.
name: Hauff, D.
name: Gironi, L.
name: Gotti, C.
name: Pessina, G.
name: Gütlein, A.
name: Maino, M.
name: Nagorny, S. S.
name: Pagnanini, L.
name: Petricca, F.
name: Pirro, S.
name: Pröbst, F.
name: Reindl, F.
name: Schäffner, K.
name: Schieck, J.
name: Seidel, W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The R&D project COSINUS (Cryogenic Observatory for SIgnatures seen in Next-generation Underground Searches) aims to develop a cryogenic scintillating calorimeter using NaI as target crystal for direct darkmatter search. Dark matter particles interacting with the detector material generate both a phonon signal and scintillation light. While the phonon signal provides a precise determination of the deposited energy, the simultaneously measured scintillation light allows for a particle identification on an event-by-event basis, a powerful tool to study material-dependent interactions, and to suppress backgrounds. Using the same target material as the DAMA/LIBRA collaboration, the COSINUS technique may offer a unique possibility to investigate and contribute information to the presently controversial situation in the dark matter sector. We report on the dedicated design planned for the NaI proof-of-principle detector and the objectives of using this detection technique in the light of direct dark matter detection.
description: 6 pages, 3 figures
Annealing Temperature and Post Sulphurizaton/Seleniation Effects on Solution-Based CZTS Devices
Creators: name: Punathil, P.
name: Zanetti, S.
name: Artegiani, E.
name: Kumar, V.
name: Romeo, A.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
CI(G)S, CdTe and Related Thin Films

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 691-694
description: CZTS absorber films were prepared by spin-coating technique and the effect of selenization temperature on the structural and morphological properties of the CZTSSe films were studied. After confirming the phase purity of the selenized CZTS films, precursor films were also annealed in different atmosphere including sulphur and selenium+sulphur with the optimized annealing temperature. The structural properties of the films were analyzed by X-ray diffraction and Raman spectroscopy; the surface morphology of the films was analyzed by atomic force microscopy. The phase purity was confirmed for the CZTS films annealed at 450°C in different atmosphere. A prototype CZTS solar cell was fabricated with spin-coated CZTS precursor film selenized at 450°C. The influence of light soaking on the films was also studied and observed an increase in device performance after 24hr light soaking. The highest device efficiency of 2.18% with Voc=212 mV, Jsc=35.1 mA/cm2 , and FF=33.4% was observed for CZTS films selenized at 450°C.
Letter from Sir William Orpen to Lady Beatrice Glenavy (Or-48/Or-49)
Creators: name: Orpen, William, Sir, 1878-1931
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Painters--Correspondence
valueUri: http://id.worldcat.org/fast/1050538
subject: Orpen, William, Sir, 1878-1931
valueUri: http://id.worldcat.org/fast/78887
subject: Glenavy, Beatrice Moss Campbell, Baroness, 1883-1970
valueUri: http://id.worldcat.org/fast/2012667
subject: Painters--Biography
valueUri: http://id.worldcat.org/fast/1050534

description: One of a collection of 36 letters all illustrated with ink or pencil sketches. Most are addressed to "Bridgit" from "Dijit". Orpen asking Beatrice about her friends, and wishing she knew more of his. Portrait of Orpen reading a letter.
Throughout RF Magnetron Sputtering Route to Fabricate CZTS Thin-Film Solar Cell
Creators: name: Sen Gupta, A.K.
name: Ahamed, E.M.K.I.
name: Quamruzzaman, M.
name: Matin, M.A.
name: Amin, N.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
CI(G)S, CdTe and Related Thin Films

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 695-697
description: Chalcogenide based thin-film solar cell (TFSC), e.g. CZTS requires several processes (vacuum and nonvacuum) in depositing layers from back-contact to front-grid. Transition between several processes during full-cell (FC) device fabrication may lead to contamination and in some cases ecological degradation during chemical synthesis, especially for mass productions. Here we propose a throughout RF magnetron sputtering deposition process as applied to CZTS photovoltaic thin-film solar cell. Specifically, we investigated microstructural and morphological properties for different substrate temperatures (RT, 150°C, 250°C, 350°C, 450°C and 500°C) of the CZTS absorber as a thin-film using XRD, FESEM and EDX prior to FC fabrication. We selected one sample (@500°C) with comparatively better crystallinity, grain size and elemental ‘active composition ratio’. For optoelectronic and electrical properties, characterizations were done by UV-Vis NIR spectroscopy and Hall effect measurements respectively for the selected sample. This recipe of CZTS as an absorber layer was used during TFSC fabrication. Preferential orientation along (112) plane with increasing intensity as substrate temperatures rose was observed except at low temperature deposition. The 2 diffraction peak positions for kesterite CZTS were at 28.46°, 47.23° corresponds to the (112), (220) plane of reflections. No other significant peaks of secondary phases were observed. Comparatively larger grain sizes were seen at high substrate temperatures. Optical bandgap as obtained from Tauc-plot was 1.55 eV for the selected sample. Moreover, it showed p-type conductivity with fair carrier concentrations (6.558×1019 /cm3) and mobility (6.210×10-2 cm2/Vs) suitable to use as an absorber layer. Two CZTS-TFSCs were fabricated with buffer layer synthesized using RF magnetron sputtering and chemical bath deposition (CBD). The open-circuit voltage, Voc value still in higher side as compared to sputtered deposited CdS based TFSC. The findings are potentially positive news for CZTS-TFSC researchers to use throughout RF magnetron sputtering process for simple, economical and eco-friendly fabrication.
The Age of the Directly-Imaged Planet Host Star $κ$ Andromedae Determined From Interferometric Observations
Creators: name: Jones, Jeremy
name: White, R. J.
name: Quinn, S.
name: Ireland, M.
name: Boyajian, T.
name: Schaefer, G.
name: Baines, E. K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: $κ$ Andromedae, an early type star that hosts a directly imaged low mass companion, is expected to be oblate due to its rapid rotational velocity ($v\sin i$ = $\sim$162 $\mathrm{km~s^{-1}}$). We observed the star with the CHARA Array's optical beam combiner, PAVO, measuring its size at multiple orientations and determining its oblateness. The interferometric measurements, combined with photometry and this $v\sin i$ value are used to constrain an oblate star model that yields the fundamental properties of the star and finds a rotation speed that is $\sim$85\% of the critical rate and a low inclination of $\sim$30$^\circ$. Three modeled properties (the average radius, bolometric luminosity, and equatorial velocity) are compared to MESA evolution models to determine an age and mass for the star. In doing so, we determine an age for the system of 47$^{+27}_{-40}$ Myr. Based on this age and previous measurements of the companion's temperature, the BHAC15 evolution models imply a mass for the companion of 22$^{+8}_{-9}$ M$_\mathrm{J}$.
description: 8 pages, 3 figures. Accepted for publication in ApJ Letters
Raman Spectroscopy as a Possible In-Line Inspection Tool for CIGS Solar Cells in Comparison with Photoluminescence Measurements
Creators: name: Zikulnig, J.
name: Harms, K.
name: Mühleisen, W.
name: Neumaier, L.
name: Bolt, P.J.
name: Simor, M.
name: De Biasio, M.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
CI(G)S, CdTe and Related Thin Films

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 698-703
description: Thin film solar cells and in particular Copper Indium Gallium Selenide (CIGS) cells have become increasingly relevant for the renewable energy market due to their high efficiencies, easy installation, high product flexibility, light weight and less labour intensiveness when compared to silicon solar cells. As for today, there are still challenges regarding the manufacturing process though, such as e.g. reproducibility and process tolerance. Therefore, cost-efficient and easily implementable inline process control methods are required that allow for an identification and elimination of non-conformal cells at an early production step. As part of this work, the potential of Raman spectroscopy and photoluminescence imaging as contact-free inline inspection tools are evaluated. The efficiencies and VOC values of two CIGS samples with various individual contacted cells were correlated with results from Raman spectroscopy and photoluminescence imaging. Both methods have proven to have high potential for the realisation of early-stage contact-free inline inspection tools in the manufacturing process of CIGS solar cells.
The host galaxy properties of variability selected AGN in the Pan-STARRS1 Medium-Deep Survey
Creators: name: Heinis, S.
name: Gezari, S.
name: Kumar, S.
name: Burgett, W. S.
name: Flewelling, H.
name: Huber, M. E.
name: Kaiser, N.
name: Wainscoat, R. J.
name: Waters, C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the properties of 975 active galactic nuclei (AGN) selected by variability in the Pan-STARRS1 Medium-Deep Survey. Using complementary multi wavelength data from the ultraviolet to the far-infrared, we use SED fitting to determine the AGN and host properties at $z<1$, and compare to a well-matched control sample. We confirm the trend previously observed that the variability amplitude decreases with AGN luminosity, but on the other hand, we observe that the slope of this relation steepens with wavelength resulting in a "redder when brighter" trend at low luminosities. Our results show that AGN are hosted by more massive hosts than control sample galaxies, while the restframe, dust-corrected $NUV-r$ color distribution of AGN hosts is similar to control galaxies. We find a positive correlation between the AGN luminosity and star formation rate (SFR), independent of redshift. AGN hosts populate the whole range of SFRs within and outside the Main Sequence of star forming galaxies. Comparing the distribution of AGN hosts and control galaxies, we show that AGN hosts are less likely to be hosted by quiescent galaxies, but more likely to be hosted by Main Sequence or starburst galaxies.
description: 14 pages, 9 figures. Accepted for publication in ApJ
A Practicable Way Doping Perovskite Solar Cell to Fabricate MAPbIxCl3-x
Creators: name: Kuan, C.-H.
name: Kuo, P.-T.
name: Lin, C.-F.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
Perovskites

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 685-686
description: MAPbIxCl3-x solar cell was fabricated by sandwich evaporate technique (SET), which can make crystallization and performance of perovskite as active layer better. Besides, combining the advantage of solution process and thermal evaporation, using SET process to form the MAPbIxCl3-x was beneficial for low-cost fabrication and mass production. With better performance of CH3NH3PbIxCl3-x perovskite film, our solar cells have PCE = 12.6 %. It was possible for chloride ion (Cl¬-) doping in the mass production.
Achievement of Graded Band Gap in CdTe Solar Cells through Selenization of the Absorber
Creators: name: Artegiani, E.
name: Punathil, P.
name: Kumar, V.
name: Romeo, A.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
CI(G)S, CdTe and Related Thin Films

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 687-690
description: The awareness of climate change is growing worldwide and with it, also the request for alternative energy solutions to fossil sources. Photovoltaic energy is one of the main answers, since the technology is well developed and can be installed anywhere. The main challenge in this field, today, is to reduce the costs of the energy produced. In this respect, CdTe thin film panels, which can be fabricated in a single manufacturing line, have a great advantage over traditional crystalline silicon cells. Moreover their efficiency is nowadays closer to that of silicon cells, having reached a value of 22.1 %. The efficiency improvement is mainly due to the replacement of the CdS layer with MZO, which has a higher band gap, and to the introduction of a CdTe1-xSex layer, which allows the grading of the absorber band gap, increasing the absorption in the long wavelength region. In this work we present a novel method to produce the band gap grading of the CdTe absorber layer through selenization of the CdTe layer.
Synthesis of Perovskite Films for Photovoltaics: Influence of the Reagents’ Ratio on the Material Properties
Creators: name: Kostylyov, V.P.
name: Sachenko, A.V.
name: Sokolovskyi, I.O.
name: Vlasiuk, V.M.
name: Torchyniuk, P.V.
name: V'yunov, O.I.
name: Belous, A.G.
name: Shkrebtii / Chkrebtii, A.I.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
Perovskites

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 673-677
description: We have studied, promising for photovoltaic applications, properties of perovskite CH3NH3PbI2.98Cl0.02 films, depending on the ratio of the precursors PbI2 and CH3NH3I during their synthesis. The 1:1, 1:2, and 1:3 ratios of PbI2 and CH3NH3I has been used. Peculiarities of the film morphology and determination of unit cell parameters are discussed. We report photoelectric and optical properties of synthesized films, namely experimental and theoretical spectral dependences of the low-signal surface photovoltage and transmission. The band gap and the Urbach parameter dependence on the ratio of precursors are determined. We have found that the materials’ band gap depends on the ratio of the precursors and equals to 1.59 eV, 1.62 eV and 1.57 eV, while the characteristic Urbach energy, equals to 18, 19 and 22 meV for the PbI2:CH3NH3I films with PbI2 ratio of 1:1, 1:2 and 1:3, respectively. We established that the spectral dependencies of the low-signal surface photovoltage are much more sensitive to the material microstructure and its electronic structure close to the absorption edge, while the optical transmission spectra are not so sensitive. The limiting value of the short-circuit current density for the films with different PbI2 and CH3NH3I ratios has been determined.
Determinants of Outsourced ERP Implementation Success: Effects of The Task-Technology Fit Theory and Partnership Quality Perspective
Creators: name: Vimolluck Vatanapitukpong
Publisher: name: Stamford International University Thailand
Year: 2020
Subjects: Task-Technology Fit
Partnership Quality
ERP
Implementation Success
Outsourcing
User Satisfaction

description: ASEAN Journal of Management & Innovation, 7, 1, 25 -42
Synthesis of Mixed-Halide Hybrid Perovskites for Defect Characterization
Creators: name: Fischer, G.
name: Beyer, J.
name: Müller, L.
name: Jarosz, A.
name: Heitmann, J.
name: Müller, M.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
Perovskites

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 678-681
description: The intention of this work is to utilize a simple and cheap synthesis of mixed-halide hybrid perovskites, which is suitable for a targeted analysis of the intrinsic and induced defects in these emerging materials. We have demonstrated the possibility to synthesis different (mixed-halide) hybrid perovskites in good quality with an easy solution method. We further applied this modified method for the synthesis of 2-D hybrid perovskites. The perovskites are analyzed by temperature- and time-resolved photoluminescence (PL).
Numerical Simulation of Bias Dependent Ion Re-Distribution in Perovskite Based Solar Cell
Creators: name: Sivadas, D.
name: Chandra Tirupati, S.
name: Nair, P.R.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
Perovskites

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 682-684
description: Phenomena like ion migration and carrier recombination at interfaces have significant influence in the performance and long-term stability of perovskite solar cells. Although addressed by thorough numerical simulations under various specialized cases, the influence of bias dependent re-distribution of ions on the performance of perovskite solar cells is yet to be clearly elucidated. Here, we report a self-consistent numerical simulation scheme to address such bias dependent re-distribution of ions and their influence on efficiency.These results reveal important insights on the device physics of perovskite solar cells and could be of interest towards modeling of stability challenges.
Letter from Sir William Orpen to Lady Beatrice Glenavy (Or-47)
Creators: name: Orpen, William, Sir, 1878-1931
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Painters--Correspondence
valueUri: http://id.worldcat.org/fast/1050538
subject: Orpen, William, Sir, 1878-1931
valueUri: http://id.worldcat.org/fast/78887
subject: Glenavy, Beatrice Moss Campbell, Baroness, 1883-1970
valueUri: http://id.worldcat.org/fast/2012667
subject: Painters--Biography
valueUri: http://id.worldcat.org/fast/1050534

description: One of a collection of 36 letters all illustrated with ink or pencil sketches. Most are addressed to "Bridgit" from "Dijit". Sketch of a man in a swimming suit, speaking French. Orpen writes about coming back from France and how there were "not enough people with taste to admire his swimming".
Technical Analysis of Mixed Binders Based on Epoxy Resin and Ethylene-Vinyl Acetate to Produce Conductive Inks for the Metallization of Perovskite Solar Cells via Screen Printing Technique
Creators: name: Montes, C.
name: Ocaña, L.
name: González-Pérez, S.
name: González-Diaz, B.
name: Friend, M.
name: Cendagorta, M.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
Perovskites

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 663-666
description: This document summarizes the work that has been carried out in order to develop a mixed binder, comprised by epoxy resin and ethylene-vinyl acetate (EVA), for produce ink vehicles for screen printing purposes, that can be used for depositing back contacts on perovskite solar cells, as an alternative from thermal evaporation. Three ink formulations are described, as well as the procedures and requisites for developing them. These inks were used to produce contacts over glass substrates via screen printing techniques and the contact were electrically characterized in order to assess their conductivity. Although the champion ink produced contacts with a volume resistivity of 2.36 Ω•cm, which means a slight improvement from previous results published by our group, further research would be required in order to reduce screen clogging during the printing process, and to increase the contact’s adherence to the substrates.
Developing an Agglomerate of Graphite and Black Carbon in an Ethylene-Vinyl Acetate in Toluene Solution for Producing Electrodes for HTM-Free Perovskite Solar Cells
Creators: name: Montes, C.
name: Ocaña, L.
name: González-Pérez, S.
name: González-Diaz, B.
name: Friend, M.
name: Cendagorta, M.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
Perovskites

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 667-672
description: The present paper summarizes the research that has been carried out, in order to develop agglomerates, made of graphite and graphite with black carbon in an ethylene vinyl acetate in toluene solution, with the purpose of producing and electrically evaluate them to be used as back electrodes in perovskite solar cells. Then, a new processing technique and a new cell architecture was developed that incorporates these materials, acting as both, back electrodes and encapsulates, in order to produce Hole Transport Material (HTM) free perovskite solar cells in ambient conditions. The preliminary results obtained show very poor Power Conversion Efficiencies (of about 0.25%) on the produced cells. However, these values remained quite stable throughout the available testing period (of about 30 days). Therefore, although it is clear that more work is required to address such significant power losses, we believe that we have also proven that this simple but innovative approach may have exciting possibilities.
TianQin: a space-borne gravitational wave detector
Creators: name: Luo, Jun
name: Chen, Li-Sheng
name: Duan, Hui-Zong
name: Gong, Yun-Gui
name: Hu, Shoucun
name: Ji, Jianghui
name: Liu, Qi
name: Mei, Jianwei
name: Milyukov, Vadim
name: Sazhin, Mikhail
name: Shao, Cheng-Gang
name: Toth, Viktor T.
name: Tu, Hai-Bo
name: Wang, Yamin
name: Wang, Yan
name: Yeh, Hsien-Chi
name: Zhan, Ming-Sheng
name: Zhang, Yonghe
name: Zharov, Vladimir
name: Zhou, Ze-Bing
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: TianQin is a proposal for a space-borne detector of gravitational waves in the millihertz frequencies. The experiment relies on a constellation of three drag-free spacecraft orbiting the Earth. Inter-spacecraft laser interferometry is used to monitor the distances between the test masses. The experiment is designed to be capable of detecting a signal with high confidence from a single source of gravitational waves within a few months of observing time. We describe the preliminary mission concept for TianQin, including the candidate source and experimental designs. We present estimates for the major constituents of the experiment's error budget and discuss the project's overall feasibility. Given the current level of technology readiness, we expect TianQin to be flown in the second half of the next decade.
description: 32 pages, 4 figures, to be published in Class. Quantum Grav
Doped Engineering Fabricated High-Crystallization Perovskite Solar Cell as MAPbI0.95Cl0.05
Creators: name: Kuan, C.-H.
name: Lin, C.-F.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
Perovskites

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 657-658
description: In this research, we use one step solution process to fabricate MAPbI3 perovskite solar cells doped with 5% chloride ion Cl-, which can improve the crystallization of perovskite solar cells in the production process. The film grown by the MAPbI2.95Cl0.05 as an active layer exhibited great uniformity. The performance of the perovskite with one step solution process was enhanced. With better performance of CH3NH3PbI2.95Cl0.05 perovskite film, our solar cells have relatively high PCE = 15.23 %.
Überblick über die Literatur zum Thema: Anwendung der Soziologie auf die Kirchengeschichte
Creators: name: Gadille, Jacques
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 6 Nr. 8/9 (1970): Concilium: Internationale Zeitschrift für Theologie, Band 6, Heft 8/9
The R1R2' outer ring revealed by young open cluster data
Creators: name: Mel'nik, Anna
name: Rautiainen, Pertti
name: Glushkova, Elena
name: Dambis, Andrei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The distribution of young open clusters in the Galactic plane suggests the existence of the outer ring R1R2' in the Galaxy. The solar position angle theta_b providing the best agreement between the observed and model distribution is theta_b=35 +\- 10 degrees. We compared the theta_b values derived from three different catalogues of open cluster and they appear to be consistent within the errors.
description: 7 pages, 2 figures, to be published in Baltic Astronomy. arXiv admin note: substantial text overlap with arXiv:1601.01282
Improvements on the Stability of MAPbI3 Thin Films Against UV Radiation by a Low Temperature Encapsulation Method that Uses Commercial Ethylene-Vinyl Acetate Sheets
Creators: name: Ocaña, L.
name: Montes, C.
name: González-Pérez, S.
name: González-Diaz, B.
name: Friend, M.
name: Cendagorta, M.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
Perovskites

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 659-662
description: This work introduces a novel encapsulation method at low temperature using commercial ethylene-vinyl acetate (EVA) sheets, in order to protect perovskite layers from humidity and UV radiation. MAPbI3 thin films were deposited on glass substrates using spin coating techniques. From the deposited films, a first set was encapsulated, while a second set remained without encapsulation for reference. Both sets were exposed to solar radiation, at relative humidity (RH) from 60 to 80%, and during different periods of time. The degradation processes were characterized by microscope imaging and optical ellipsometry. The results indicate that the EVA encapsulated samples, in comparison with the non-encapsulated ones, remained stable above 350 hours under solar radiation. In addition, the analysis of the absorption coefficient reveals that the characteristic bands, located at 360 nm and 500 nm, can be associated with the decomposition of the MAPbI3 layer under UV radiation.
title: Прагматические коммуникации: одержимые и эпатажные от Telegram до YouTube
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2022

description: Материал учебного пособия создавался в контексте непростых коммуникаций времени специальной военной операции. Издание весьма актуально, так как послужит адекватным основанием для конкретных проектов в рамках социально-гуманитарных технологий, эскизно выявляет установки, ценности, мировоззрение самих будущих социально-гуманитарных технологов. Книга основана на итогах статистической обработки нескольких сотен наиболее актуальных персонажей, их аналитике и различных аспектах представления как в традиционных, так и новых медиа. Цель этого исследования состоит в том, чтобы выявить изменения или сдвиги в осмыслении мира молодежи и установить их связь с произошедшими за 6–12 лет изменениями в системе образов, наполняющих российское медиапространство. Подготовлено с учетом требований Федерального государственного образовательного стандарта высшего образования. Учебное пособие предназначено для бакалавров и магистрантов, обучающихся по направлениям подготовки «Реклама и связи с общественностью», «Журналистика», «Медиакоммуникации», «Социально-культурная деятельность» «Дизайн», изучающих дисциплины «Мифодизайн в рекламе», «Создание идентичности брендов», «Теория и практика рекламы и связей с общественностью в коммерческой сфере», «Современные технологии в рекламе», «Реклама в коммуникационном процессе» и другие курсы.
Outdoor Monitoring System with MPP Tracking for Perovskite Solar Cells
Creators: name: Glažar, B.
name: Matic, G.
name: Jost, M.
name: Topic, M.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
Perovskites

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 653-656
description: Prototype solar cells are usually tested indoors and left unconnected when measurements are not being performed. While the approach being simple it does not reflect the real-life operating condition of the cells. A more realistic approach is of course to continuously operate the cells outdoors at their maximum power point for a longer period of time. An outdoor monitoring system suitable for small prototype solar cells is presented. The cells under test are protected by an enclosure with a transparent lid. An in-house developed multi-channel micro maximum power point tracker (uMPPT) provides electrical loading to the cells. Besides MPP, open-circuit, short-circuit and constant voltage modes are also possible to be set per each channel of the uMPPT, giving us a wide range of different aging tests. Temperature of the cells is measured with digital sensors, which interface directly with the uMPPT. Occasionally, an I–V scan of each cell is also measured. The scans are performed in situ without taking the cells from the rooftop to a laboratory. A control computer records measured values of voltages, currents, temperatures and weather to a database at regular intervals.
Novel Photovoltaic Devices Using Ferroelectric Material
Creators: name: Ndioukane, R.
name: Balde, F.
name: Kobor, D.
name: Fall, N.C.Y.
name: Tine, M.
name: Himbane, P.B.
name: Motte, L.
name: Solard, J.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
Perovskites

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 649-652
description: The photoferroelectric device, in which a homogeneous ferroelectric material is used as a light absorbing layer, has been investigated during the past several decades with numerous ferroelectric oxides. Achieving high power conversion efficiencies in ferroelectric photovoltaics is a longstanding challenge. This work pursues to provide an efficient solar cell, which can be rapidly prepared in an efficient way, using readily available or low cost materials such as ferroelectric material, using a short manufacturing procedure, keeping the material costs and the material impact on the environment very low. Different parameters affect the performances of this new generation photovoltaic cells such as architecture, the type of material used for the active layer, the techniques of fabrication and preparation of different layers. PZN-4.5PT nanoparticles thin films were combined to an I-/I 3 - electrolyte solution, graphene or pentacene for photovoltaic application. The fabricated photovoltaic devices were characterized by using morphological characterization and electrical measurements. Optical images show a homogeneous, sparse and porous surface, showing greenish-yellow coloured non regular agglomerated grains with an average size of 30 nm. The overall power conversion efficiency of undoped samples were 0.304 % and 0.253 % for graphene and pentacene photovoltaic devices respectively and this is higher than a I- /I3 - photovoltaic device (0.014 %).
Scattering of EM waves by many small perfectly conducting or impedance bodies
Creators: name: Ramm, A. G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 78A45, 78A25, Z8A40, 78M40, 35825, 35J2, 35J57

description: A theory of electromagnetic (EM) wave scattering by many small particles of an arbitrary shape is developed. The particles are perfectly conducting or impedance. For a small impedance particle of an arbitrary shape an explicit analytical formula is derived for the scattering amplitude. The formula holds as $a\to 0$, where $a$ is a characteristic size of the small particle and the wavelength is arbitrary but fixed. The scattering amplitude for a small impedance particle is shown to be proportional to $a^{2-κ}$, where $κ\in [0,1)$ is a parameter which can be chosen by an experimenter as he/she wants. The boundary impedance of a small particle is assumed to be of the form $ζ=ha^{-κ}$, where $h=$const, Re$h\ge 0$. The scattering amplitude for a small perfectly conducting particle is proportional to $a^3$, it is much smaller than that for the small impedance particle. The many-body scattering problem is solved under the physical assumptions $a\ll d\ll λ$, where $d$ is the minimal distance between neighboring particles and $λ$ is the wavelength. The distribution law for the small impedance particles is $\mathcal{N}(δ)\sim\int_δN(x)dx$ as $a\to 0$. Here $N(x)\ge 0$ is an arbitrary continuous function that can be chosen by the experimenter and $\mathcal{N}(δ)$ is the number of particles in an arbitrary sub-domain $Δ$. It is proved that the EM field in the medium where many small particles, impedance or perfectly conducting, are distributed, has a limit, as $a\to 0$ and a differential equation is derived for the limiting field. On this basis the recipe is given for creating materials with a desired refraction coefficient by embedding many small impedance particles into a given material.
Mode instabilities and dynamic patterns in a colony of self-propelled surfactant particles covering a thin liquid layer
Creators: name: Pototsky, Andrey
name: Thiele, Uwe
name: Stark, Holger
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider a colony of point-like self-propelled surfactant particles (swimmers) without direct interactions that cover a thin liquid layer on a solid support. Although the particles predominantly swim normal to the free film surface, their motion also has a component parallel to the film surface. The coupled dynamics of the swimmer density and film height profile is captured in a long-wave model allowing for diffusive and convective transport of the swimmers (including rotational diffusion). The dynamics of the film height profile is determined by three physical effects: the upward pushing force of the swimmers onto the liquid-gas interface that always destabilizes the flat film, the solutal Marangoni force due to gradients in the swimmer concentration that always acts stabilising, and finally the rotational diffusion of the swimmers together with the in-plance active motion that acts either stabilising or destabilising. After reviewing and extending the analysis of the linear stability of the flat film with uniform swimmer density, we analyse the full nonlinear dynamic equations and show that point-like swimmers, which only interact via long-wave deformations of the liquid film, self-organise in highly regular (standing, travelling and modulated waves) and various irregular patterns for swimmer density and film height.
Comparative Study of the Properties of MAPbI3 Films Prepared by Different Methods
Creators: name: Gordillo, G.
name: Ramírez Pérez, E.A.
name: Torres, O.G.
name: Abella, M.C.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
Perovskites

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 641-644
description: In this paper, results of a comparative study of the optical, structural and morphological properties of thin films of CH3NH3PbI3 (MAPbI3) prepared by different techniques based on growth methods both in solution and thermal evaporation are reported. The main emphasis was placed on comparing the effect that growth methods of the MAPbI3 compound, such as spin coating in one stage, evaporation of lead iodide (PbI2) followed by dipping in a solution of methylamine iodide (MAI) and conventional thermal evaporation of PbI2 followed by evaporation of MAI by the CSS (close spaced sublimation) method, produces on morphology, structure, microstructure and on the optical constants. The three synthesis methods we have used, allow growing thin films of MAPbI3 free of secondary phases with perovskita type tetragonal structure; however, characterization carried out through photoluminescence (PL), scanning electron microscopy (SEM) and Urbach energy measurements allowed to find clear evidence that MAPBI3 films prepared by sequentially evaporating PbI2 and MAI grow with better morphology and structural ordering.
Monotonicity and complete monotonicity for continuous-time Markov chains
Creators: name: Pra, Paolo Dai
name: Louis, Pierre-Yves
name: Minelli, Ida
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We analyze the notions of monotonicity and complete monotonicity for Markov Chains in continuous-time, taking values in a finite partially ordered set. Similarly to what happens in discrete-time, the two notions are not equivalent. However, we show that there are partially ordered sets for which monotonicity and complete monotonicity coincide in continuous time but not in discrete-time.
Growth of MAPbI3 Films with Improved Stability: A Comparative Study
Creators: name: Gordillo, G.
name: Torres, O.G.
name: Abella, M.C.
name: Peña, J.C.
name: Virguez, O.
Publisher: name: WIP
Year: 2020
Subjects: Perovskites and Other Non-Silicon Materials, MJs and Tandems
Perovskites

description: 37th European Photovoltaic Solar Energy Conference and Exhibition; 645-648
description: This paper reports results of a study on the impact that the synthesis method and the replacement of the methylammonium (MA) cation by the formamidinium (FA) cation have on the degradation of MAPbI3 films when these are exposed to environmental conditions. This study was conducted with samples deposited using different routes based on growth methods both in solution and thermal evaporation, such as spin coating in one step and two-step growth routes that include dipping in a solution of methylammonioum iodide (MAI) of a coated glass substrate with a layer of PbI2 previously deposited by evaporation and a third novel route which includes sequential deposition of layers of PbI2 and MAI by conventional evaporation and by CSS (close spaced sublimation) respectively. All the synthesis methods we have used, allowed growing thin films of MAPbI3 free of secondary phases with perovskita type tetragonal structure; however, the study revealed that both the growth route and the incorporation of FA into the MAPBI3 lattice significantly affects the stability of the samples when these are exposed to the environment. Improved stability was achieved using two-stage growth methods.