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Advanced polymer encapsulates for photovoltaic devices-A review

Journal of Materiomics 2021年第5期7卷 920-928页

作者： Sashivinay Kumar Gaddam Ramyakrishna Pothu rajen.er boddula LAMTUF Plastics Private Ltd HyderabadTelanganaIndia College of Chemistry and Chemical Engineering Hunan UniversityChangsha410082China CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and TechnologyBeijing100190China Energy&Environmental Engineering Department CSIRIndian Institute of Chemical TechnologyHyderabad500007Telangana stateIndia

Photovoltaic(PV)technology has evolved as the major renewable power resource in the worldwide green energy sector to meet the future challenge of energy *** main barrier for the commercialization of this technology which is even estimated to contribute about 20% of the global energy supply by 2050 is the poor performance and stability of the PV modules in the outdoor *** of PV modules is one among the multiple ways to mitigate these stability issues and it plays an important role in the enhancement of the device lifetime by providing a barrier structure to restrict the penetration of oxygen and *** review summarizes the extensive progress made in the field of polymer encapsulate materials for PV modules and also providing current challenges and future perspectives in this area.

关键词： Encapsulation PV modules Polymer composites Stimuli-responsive polymers Stability Lifetime

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Role of transition-metal electrocatalysts for oxygen evolution with Si-based photoanodes

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Chinese Journal of Catalysis 2021年第8期42卷 1387-1394页

作者： rajen.er boddula Guancai Xie Beidou Guo Jian Ru Gong Chinese Academy of Sciences(CAS)Center for Excellence in Nanoscience CAS Key Laboratory of Nanosystem and Hierarchy FabricationNational Center for Nanoscience and TechnologyBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

A comprehensive understanding of the role of the electrocatalyst in photoelectrochemical(PEC)water splitting is central to improving its ***,taking the Si-based photoanodes(n^(+)p-Si/SiO_(x)/Fe/FeOx/MOOH,M=Fe,Co,Ni)as a model system,we investigate the effect of the transition-metal electrocatalysts on the oxygen evolution reaction(Oer).Among the photoanodes with the three different electrocatalysts,the best Oer activity,with a low-onset potential of∼1.01 VRHE,a high photocurrent density of 24.10 mA cm^(-2)at 1.23 VRHE,and a remarkable saturation photocurrent density of 38.82 mA cm^(-2),was obtained with the NiOOH overlayer under AM 1.5G simulated sunlight(100 mW cm^(-2))in 1 M KOH *** optimal interfacial engineering for electrocatalysts plays a key role for achieving high performance because it promotes interfacial charge transport,provides a larger number of surface active sites,and results in higher Oer activity,compared to other *** study provides insights into how electrocatalysts function in water-splitting devices to guide future studies of solar energy conversion.

关键词： Solar water splitting Artificial photosynthesis Oxygen evolution reaction Photoanode Interfacial engineering Transition-metal electrocatalyst

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GaP/GaPN core/shell nanowire array on silicon for enhanced photoelectrochemical hydrogen production

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Chinese Journal of Catalysis 2020年第1期41卷 2-8页

作者： Guancai Xie Saad Ullah Jan Zejian Dong Yawen Dai rajen.er boddula Yuxuan Wei Chang Zhao Qi Xin Jiao-Na Wang Yinfang Du Lan Ma Beidou Guo Jian Ru Gong Chinese Academy of Sciences(CAS)Center for Excellence in Nanoscience CAS Key Laboratory of Nanosystem and Hierarchy FabricationNational Center for Nanoscience and TechnologyBeijing 100190China University of CAS Beijing 100049China Beijing Institute of Fashion Technology Beijing 100029China

Simultaneously improving the efficiency and stability on a large scale is significant for the development of photoelectrochemical(PEC)water splitting ***,we demonstrated a novel design of GaP/GaPN core/shell nanowire(NW)decorated p-Si photocathode for improved PEC hydrogen production performance compared to that of bare p-Si *** formation of the p-n junction between p-Si and GaP NW promotes charge separation,and the lower conduction band position of GaPN relative to that of GaP further facilitates the transfer of photogenerated electrons to the electrode *** addition,the NW morphology both shortens the carrier collection distance and increases the specific surface area,which result in superior reaction ***,introduction of N in GaP is beneficial for enhancing the light absorption as well as *** efficient and facile strategy can be applied to other solar energy conversion systems as well.

关键词： Core/shell nanowire GaP GaPN Hydrogen production Si Solar water splitting Tandem structure

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