bluuebunny/crossref_metadata_2025_split huggingface dataset:
Simultaneously Achieving Highly Efficient and Stable Polymer:Non‐Fullerene Solar Cells Enabled By Molecular Structure Optimization and Surface Passivation
Authors: Liu Bowen , Su Xiao , Lin Yi , Li Zerui , Yan Lingpeng , Han Yunfei , Luo Qun , Fang Jin , Yang Shangfeng , Tan Hongwei , Ma Chang‐Qi 
Published: January 2022

AbstractDespite the tremendous efforts in developing non‐fullerene acceptor (NFA) for polymer solar cells (PSCs), only few researches are done on studying the NFA molecular structure dependent stability of PSCs, and long‐term stable PSCs are only reported for the cells with low efficiency. Herein, the authors compare the stability of inverted PM6:NFA solar cells using ITIC, IT‐4F, Y6, and N3 as the NFA, and a decay rate order of IT‐4F > Y6 ≈ N3 > ITIC is measured. Quantum chemical calculations reveal that fluorine substitution weakens the C═C bond and enhances the interaction between NFA and ZnO, whereas the β‐alkyl chains on the thiophene unit next to the C═C linker blocks the attacking of hydroxyl radicals onto the C═C bonds. Knowing this, the authors choose a bulky alkyl side chain containing molecule (named L8‐BO) as the acceptor, which shows slower photo bleaching and performance decay rates. A combination of ZnO surface passivation with phenylethanethiol (PET) yields a high efficiency of 17% and an estimated long T80 and Ts80 of 5140 and 6170 h, respectively. The results indicate functionalization of the β‐position of the thiophene unit is an effective way to improve device stability of the NFA.
Self‐Powered Artificial Mechanoreceptor Based on Triboelectrification for a Neuromorphic Tactile System
Authors: Han Joon‐Kyu , Tcho Il‐Woong , Jeon Seung‐Bae , Yu Ji‐Man , Kim Weon‐Guk , Choi Yang‐Kyu 
Published: January 2022

AbstractA self‐powered artificial mechanoreceptor module is demonstrated with a triboelectric nanogenerator (TENG) as a pressure sensor with sustainable energy harvesting and a biristor as a neuron. By mimicking a biological mechanoreceptor, it simultaneously detects the pressure and encodes spike signals to act as an input neuron of a spiking neural network (SNN). A self‐powered neuromorphic tactile system composed of artificial mechanoreceptor modules with an energy harvester can greatly reduce the power consumption compared to the conventional tactile system based on von Neumann computing, as the artificial mechanoreceptor module itself does not demand an external energy source and information is transmitted with spikes in a SNN. In addition, the system can detect low pressures near 3 kPa due to the high output range of the TENG. It therefore can be advantageously applied to robotics, prosthetics, and medical and healthcare devices, which demand low energy consumption and low‐pressure detection levels. For practical applications of the neuromorphic tactile system, classification of handwritten digits is demonstrated with a software‐based simulation. Furthermore, a fully hardware‐based breath‐monitoring system is implemented using artificial mechanoreceptor modules capable of detecting wind pressure of exhalation in the case of pulmonary respiration and bending pressure in the case of abdominal breathing.
Perhydropolysilazane Charge‐Trap Layer in Solution‐Processed Organic and Oxide Memory Thin‐Film Transistors
Authors: Boampong Amos Amoako , Lee Sang‐Hoon , Lee Jonghee , Choi Yoonseuk , Kim Min‐Hoi 
Published: January 2022

AbstractThe charge trapping property of spin‐coated perhydropolysilazane (PHPS) layers for solution‐processed organic and oxide thin film memory transistors is demonstrated. The nitrogen content within the PHPS layer is decreased by increasing the annealing temperatures from room temperature to 450 °C. The PHPS layer added to the SiO2 gate insulator in the charge trap memories (CTMs) shows good memory functionalities which are electrically programmable, and is erased either electrically or optically depending on the semiconductor used. The stored or erased charges in the p‐type semiconductor‐based CTM result in relatively large threshold voltage shifts (∆VTH > 60 V) and large memory on‐ and off‐current ratio (IM,ON/IM,OFF > 103) with the respective memory output current extrapolated to 108 s. The n‐type CTM shows ∆VTH ≈ 20 V, IM,ON/IM,OFF of 0.5 × 103 and is extrapolated to 1015 s. It is concluded that the origin of the charge‐traps in both the p‐type and n‐type CTMs mainly originates from the PHPS charge trap layer (CTL) and greatly occurs in highly concentrated nitrogen PHPS layers. There is a high possibility of using the PHPS CTL in a wide variety of cost‐effective CTMs even with high temperature processed semiconductors.
A Self‐Regulated Interface toward Highly Reversible Aqueous Zinc Batteries
Authors: Han Daliang , Wang Zhenxing , Lu Haotian , Li Huan , Cui Changjun , Zhang Zhicheng , Sun Rui , Geng Chuannan , Liang Qinghua , Guo Xiaoxia , Mo Yanbing , Zhi Xing , Kang Feiyu , Weng Zhe , Yang Quan‐Hong 
Published: January 2022

AbstractAqueous zinc batteries, that demonstrate high safety and low cost, are considered promising candidates for large‐scale energy storage. However, Zn anodes suffer from rapid performance deterioration due to the severe Zn dendrite growth and side reactions. Herein, with a low‐cost ammonium acetate (NH4OAc) additive, a self‐regulated Zn/electrolyte interface is built to address these problems. The NH4+ induces a dynamic electrostatic shielding layer around the abrupt Zn protuberance to make the Zn deposition uniform, and the OAc− acts as an interfacial pH buffer to suppress the proton‐induced side reactions and the precipitation of insoluble by‐products. As a result, in the electrolyte with the NH4OAc additive, Zn anodes exhibit a long cycling stability of 3500 h at 1 mA cm−2, an impressive cumulative areal capacity of 5000 mAh cm−2 at 10 mA cm−2, and a high Coulombic efficiency of ≈99.7%. A prototype full cell coupled with a NH4V4O10 cathode performs much better in terms of capacity retention than the additive‐free case. The findings pave the way for developing practical Zn batteries.
Anti‐Corrosion for Reversible Zinc Anode via a Hydrophobic Interface in Aqueous Zinc Batteries
Authors: Guan Kailin , Tao Li , Yang Rong , Zhang Haonan , Wang Nengze , Wan Houzhao , Cui Jian , Zhang Jun , Wang Hanbin , Wang Hao 
Published: January 2022

AbstractWater corrosion and dendrite growth seriously break the zinc plating/stripping process at the electrolyte/anode interface, causing the instability of the zinc metal anode of aqueous zinc batteries. Herein, a self‐consistent hydrophobic interface and orderly channels are assembled by three quaternary ammonium cationic surfactants, which can block the water erosion. Of particular interest, experimental results combined with theoretical calculation (DFT) reveals that the hydrophobic groups in quaternary ammonium cations are the determinaning factor in the kinetic process of zinc ion deposition and the life of the zinc anode. The massive micelles formed by benzyldimethyldodecylammonium with dodecyl and benzyl groups cause great hindrance to the transport and deposition of zinc ions. And dodecyltrimethylammonium with only a main hydrophobic group of dodecyl results in the higher polarization overpotential or voltage hysteresis for the zinc plating and lower coulombic efficiency (CE) < 99%. Surprisingly, the hydrophobic interface assembled by benzyltrimethylammonium (TMBA+) with a main benzyl group can inhibit side reactions and regulate zinc uniform deposition. And the batteries based on TMBA+ can achieve superb cycle stability with low voltage hysteresis and almost 100% CE. The proposed hydrophobic interface formed by quaternary ammonium cationic surfactants establishes pioneering work on zinc anode stability for zinc batteries and beyond.
Covalent Organic Framework with Highly Accessible Carbonyls and π‐Cation Effect for Advanced Potassium‐Ion Batteries
Authors: Luo Xiao‐Xi , Li Wen‐Hao , Liang Hao‐Jie , Zhang Hong‐Xia , Du Kai‐Di , Wang Xiao‐Tong , Liu Xin‐Fang , Zhang Jing‐Ping , Wu Xing‐Long 
Published: January 2022

AbstractCovalent organic frameworks (COF) possess a robust and porous crystalline structure, making them an appealing candidate for energy storage. Herein, we report an exfoliated polyimide COF composite (P‐COF@SWCNT) prepared by an in situ condensation of anhydride and amine on the single‐walled carbon nanotubes as advanced anode for potassium‐ion batteries (PIBs). Numerous active sites exposed on the exfoliated frameworks and the various open pathways promote the highly efficient ion diffusion in the P‐COF@SWCNT while preventing irreversible dissolution in the electrolyte. During the charging/discharging process, K+ is engaged in the carbonyls of imide group and naphthalene rings through the enolization and π‐K+ effect, which is demonstrated by the DFT calculation and XPS, ex‐situ FTIR, Raman. As a result, the prepared P‐COF@SWCNT anode enables an incredibly high reversible specific capacity of 438 mA h g−1 at 0.05 A g−1 and extended stability. The structural advantage of P‐COF@SWCNT enables more insights into the design and versatility of COF as an electrode.
Spin Crossover in a Cobalt Complex on Ag(111)
Authors: Johannsen Sven , Ossinger Sascha , Grunwald Jan , Herman Alexander , Wende Heiko , Tuczek Felix , Gruber Manuel , Berndt Richard 
Published: January 2022

AbstractThe Co‐based complex [Co(H2B(pz)(pypz))2] (py=pyridine, pz=pyrazole) deposited on Ag(111) was investigated with scanning tunneling microscopy at ≈5 K. Due to a bis(tridentate) coordination sphere the molecules aggregate mainly into tetramers. Individual complexes in these tetramers undergo reversible transitions between two states with characteristic image contrasts when current is passed through them or one of their neighbors. Two molecules exhibit this bistability while the other two molecules are stable. The transition rates vary linearly with the tunneling current and exhibit an intriguing dependence on the bias voltage and its polarity. We interpret the states as being due to S=1/2 and 3/2 spin states of the Co2+ complex. The image contrast and the orders‐of‐magnitude variations of the switching yields can be tentatively understood from the calculated orbital structures of the two spin states, thus providing first insights into the mechanism of electron‐induced excited spin‐state trapping (ELIESST).
Construction of crystalline cadmium complex based on 1,4,5,8‐naphthalene diimide derivative and photocatalytic degradation about organic dyes
Authors: Zhang Xue , Wang Chen , Wang Li Yan , Xing Yong Heng , Bai Feng Ying , Shi Zhan 
Published: January 2022

AbstractThe complex [Cd(PDNDI)]·DMF (Cd‐PDNDI) (H2PDNDI = N‐(4‐pyridine)‐4,5‐dicarboxy‐1,8‐naphthalene dicarboxyimide) was synthesized by the reaction of N,N′‐di(4‐pyridyl)‐1,4,5,8‐naphthalene diimide (DPNDI) and Cd(NO3)2·4H2O. It was characterized by elemental analysis, infrared spectroscopy, ultraviolet–visible (UV‐vis) spectroscopy, powder X‐ray diffraction (PXRD), single crystal X‐ray diffraction, and thermogravimetric analysis. Structural analysis shows that the Cd‐PDNDI has a self‐assembled 3D network structure with the rtl type topology. It is worth mentioning that the composition of the ligand is different from the initial raw material used in this molecular structure. This may be because the ligand undergoes an in situ hydrolysis reaction in the reaction system and becomes an NDI carboxylic acid derivative, which continues to join coordination reaction with the metal ion. In addition, the Cd‐PDNDI has an excellent photocatalytic effect on malachite green (MG) among the six dyes, which shows that the Cd‐PDNDI could be used as a photocatalytic material for the degradation of dyes.
The Inhibition of RNA Viruses by Amaryllidaceae Alkaloids: Opportunities for the Development of Broad‐Spectrum Anti‐Coronavirus Drugs
Authors: Tan Shen , Banwell Martin G. , Ye Wen‐Cai , Lan Ping , White Lorenzo V. 
Published: January 2022

AbstractThe global COVID‐19 pandemic has claimed the lives of millions and disrupted nearly every aspect of human society. Currently, vaccines remain the only widely available medical means to address the cause of the pandemic, the SARS‐CoV‐2 virus. Unfortunately, current scientific consensus deems the emergence of vaccine‐resistant SARS‐CoV‐2 variants highly likely. In this context, the design and development of broad‐spectrum, small‐molecule based antiviral drugs has been described as a potentially effective, alternative medical strategy to address circulating and re‐emerging CoVs. Small molecules are well‐suited to target the least‐rapidly evolving structures within CoVs such as highly conserved RNA replication enzymes, and this renders them less vulnerable to evolved drug resistance. Examination of the vast literature describing the inhibition of RNA viruses by Amaryllidaceae alkaloids suggests that future, broad‐spectrum anti‐CoV drugs may be derived from this family of natural products.
Effect of Eu doping on the thermoluminescence of UV and gamma irradiated Mg2B2O5 nanophosphors
Authors: Kumar Jitender , Kumar Shalendra , Shekhar Chander , Brajpuriya Ranjeet , Vij Ankush 
Published: January 2022

AbstractThis article presents the effect of europium (Eu) doping on the thermoluminescence (TL) of ultraviolet (UV‐254 nm) and gamma irradiated triclinic Mg2B2O5 nanophosphors. The diffuse reflectance predicts slight decrease in band gap from 5.18 to 4.99 eV with increasing Eu (1%, 3%, and 5%) content in Mg2B2O5. The TL glow curves of UV irradiated samples comprised of a main peak around 500 K with weak intensity peak/shoulders in low temperature region. Interestingly Eu (3%) doped Mg2B2O5 shows maximum TL intensity with suppression of low temperature shoulder peaks and almost linear UV dose dependent TL response. However, in the case of gamma irradiated Eu (1% and 3% doped) samples, TL glow curve comprises of a main peak around 425–445 K and closely lying peak around 500–515 K with relatively lesser intensity. In case of Eu (5%) doped samples, TL peak around 508 K starts dominating over peak around 425 K. TL of both UV and gamma irradiated samples showed the presence of various deep and shallow defect states within the bandgap of materials having different kinetic parameters, which were determined using TLanal software based on Kiti's general order equation. The present study shows that Eu doped Mg2B2O5 nanophosphors can be tuned for UV and gamma dosimetry.
Missed opportunities for concomitant HPV vaccination among childhood cancer survivors
Authors: Ramsay Joemy M. , Kaddas Heydon K. , Ou Judy Y. , Kepka Deanna , Kirchhoff Anne C. 
Published: January 2022

AbstractPurposeChildhood cancer survivors are at higher risk of human papillomavirus (HPV)‐related second cancers than adolescents without cancer, yet their HPV vaccination uptake is lower. Using a statewide sample, we evaluated whether survivors are at higher risk of missed opportunities for concomitant HPV vaccination.MethodsFrom statewide healthcare data, we identified encounters where vaccines were received. Concomitant HPV vaccine missed opportunities were defined as a vaccine encounter where the HPV vaccine was not administered, although eligibility criteria were met. From these encounters, our sample included 327 survivors identified from the Utah Cancer Registry, diagnosed 2000–2016 at ages 0–9, and a birth year and sex‐matched sample without cancer from the general population (n = 1,911). Mixed‐effects Poisson regression estimated the rate of concomitant missed opportunities per vaccine encounter and 95% confidence intervals by vaccine encounter type (all vaccines, flu shot only, or adolescent/catch‐up) from 2013 to 2016.ResultsSurvivors had more concomitant HPV vaccine missed opportunities than the population sample (70.0% vs. 59.0%). On average, survivors were 12% more likely to have missed opportunities at vaccine encounters and 4% more likely at flu shot only encounters. The predicted excess risk of concomitant missed opportunities for survivors ranged from 0.5 per10 vaccine encounters to 1.1 per10 vaccine encounters. Higher parental education, rurality, younger first vaccine age, and chemotherapy were associated with missed opportunities.ConclusionsChildhood cancer survivors have more missed opportunities for concomitant HPV vaccination than a population sample. As flu shots should be administered annually, providers have a regular opportunity to recommend and deliver the HPV vaccine to survivors.
Predictors of optimal procedural result after transcatheter edge‐to‐edge mitral valve repair in secondary mitral regurgitation
Authors: Adamo Marianna , Pagnesi Matteo , Popolo Rubbio Antonio , Branca Luca , Grasso Carmelo , Denti Paolo , Giordano Arturo , Tusa Maurizio , De Marco Federico , Lupi Laura , Bartorelli Antonio L. , Godino Cosmo , Citro Rodolfo , De Felice Francesco , Mongiardo Annalisa , Monteforte Ida , Villa Emmanuel , Giannini Cristina , Testa Luca , Curello Salvatore , Tarantini Giuseppe , Tamburino Corrado , Bedogni Francesco , Metra Marco 
Published: January 2022

AbstractBackgroundProcedural success after transcatheter edge‐to‐edge mitral valve repair (TEER) is defined as a reduction of mitral regurgitation (MR) degree to <moderate (2+). However, post‐procedural MR 0/1+ was found to be associated with a better outcome and a lower rate of MR recurrence compared to post‐procedural MR 2+.AimTo evaluate predictors and prognostic impact of optimal procedural result (MR 0/1+) after TEER.MethodsThe Italian Society of Interventional Cardiology (GIse) Registry of Transcatheter Treatment of Mitral Valve RegurgitaTiOn (GIOTTO) is a large multicenter registry including patients undergoing TEER in 19 Italian centers between January 2016 and March 2020. For the purpose of this analysis, only patients with secondary MR and successful TEER were included.ResultsAmong 950 patients enrolled, 637 (67%) had an optimal procedural result (MR 0/1+) and 313 (33%) had an acceptable procedural result (MR 2+) after TEER. Moderate‐to‐severe, rather than severe, MR, left ventricular end‐systolic diameter <70 mm at baseline, and treatment in centers performing ≥20 procedures/year were independent predictors of the optimal procedural result. Compared to patients with acceptable procedural result, those with optimal result had shorter device time and length of stay and better outcomes with lower rates of all‐cause and cardiac deaths (25.7% vs. 40%, p < 0.001 and 16.3% vs. 24.8%, p = 0.003, respectively) and HF hospitalizations (24% vs. 30%; p = 0.035) at 2‐year follow‐up.ConclusionsIn patients with secondary MR undergoing TEER, an optimal procedural result is associated with favorable outcomes and can be achieved by selecting patients with moderate‐to‐severe MR, without severe left ventricular dilatation, and treated in high‐volume centers.Classificationsmitral regurgitation, mitral valve repair, chronic heart failure
Ticagrelor versus clopidogrel in patients with acute coronary syndrome undergoing complex percutaneous coronary intervention
Authors: Li Yuzhuo , Li Jing , Qiu Miaohan , Ma Sicong , Na Kun , Li Xiaoying , Qi Zizhao , Chen Sanbao , Li Yi , Han Yaling 
Published: January 2022

AbstractObjectivesTo evaluate the effectiveness and safety of ticagrelor versus clopidogrel in patients with acute coronary syndromes (ACS) undergoing complex percutaneous coronary intervention (PCI).BackgroundIt remains inconclusive whether ticagrelor is superior to clopidogrel in ACS patients undergoing complex PCI in real‐world practice.MethodsBased on an all‐comers PCI registry, we compared the long‐term effectiveness and safety between ticagrelor and clopidogrel in ACS patients undergoing complex PCI, defined as PCI procedures for complex lesions including bifurcation, chronic total occlusion, ostial, tortuous, calcific, diffused, thrombus‐containing, and restenotic lesions. The primary ischemic outcome was a composite of cardiac death, myocardial infarction, or stroke. The safety outcome comprised Bleeding Academic Research Consortium (BARC) types 2, 3, and 5 bleeding. Propensity score matching (PSM) was performed to reduce bias.ResultsAmong ACS patients who underwent complex PCI, 4373 (35.2%) and 8065 (64.8%) received dual antiplatelet therapy based on ticagrelor and clopidogrel, respectively. The incidences of composite ischemic events (before PSM: 1.74% vs. 2.84%; after PSM: 1.50% vs. 2.65%; p < 0.01 for both) and all‐cause death (before PSM: 1.23% vs. 2.12%, p < 0.01; after PSM: 1.09% vs. 1.81%, p = 0.02) were significantly lower in the ticagrelor‐treated than in the clopidogrel‐treated group. There was no significant difference in BARC types 2, 3, and 5 bleeding between groups.ConclusionsWhilst the risk of major bleeding was comparable between the two drugs, ticagrelor was associated with a significantly lower risk of ischemic events than clopidogrel in ACS patients undergoing complex PCI.
Transcatheter pulmonary valve‐in‐valve implantation within the expandable Inspiris Resilia® bioprosthetic valve
Authors: Batlivala Sarosh P. , Hagel Jonathon A. , Hirsch Russel , Shahanavaz Shabana 
Published: January 2022

AbstractTranscatheter pulmonary valve implantation (TPVI) is a common intervention for patients with repaired congenital heart disease. A key issue relates to the presence of an appropriately sized implantation zone for the transcatheter valve. We report the first case, to our knowledge, of TPVI within the newly engineered Inspiris Resilia® bioprosthetic valve, intentionally designed with a balloon‐expandable valve ring (a.k.a. VFit zone) for prospective valve implantation.
MOF‐Derived Cu/Bi Bi‐metallic Catalyst to Enhance Selectivity Toward Formate for CO2 Electroreduction
Authors: Xue Yi , Li Chengjin , Zhou Xiaoxia , Kuang Zhaoyu , Zhao Wanpeng , Zhang Qingming , Chen Hangrong 
Published: January 2022

AbstractConverting CO2 into high‐value liquid products is a promising strategy to alleviate energy crisis. Herein, a novel Cu/Bi bi‐metal catalyst derived from MOFs has been prepared by a hydrothermal synthesis combining with high temperature calcination under N2 atmosphere, which shows cylindrical morphology composed of bi‐metallic nanoparticles. It is found that Cu/Bi bi‐metallic system is beneficial to lower the activate energy barrier of CO2 and shows a stronger adsorption capability for the CO2 ⋅ − intermediate than that of reference Bi/Bi2O3@C without Cu species. XPS analysis indicates the boosted performance for CO2 reduction reaction, which could be ascribed to synergistic coordination of Bi0 and Bi3+ in the catalyst. The optimized Cu1−Bi/Bi2O3@C exhibits excellent selectivity toward HCOOH with faradaic efficiency (FE) exceeding 84 % between −0.84 and −1.14 V vs. RHE, and even reaching 93 % at −0.94 V vs. RHE. The obtained Cu/Bi bi‐metal catalyst shows a promising application prospect in the CO2 reduction.