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

作     者：Guancai Xie Saad Ullah Jan Zejian Dong Yawen Dai Rajender Boddula Yuxuan Wei Chang Zhao Qi Xin Jiao-Na Wang Yinfang Du Lan Ma Beidou Guo Jian Ru Gong 谢关才;Saad Ullah Jan;董泽健;代亚雯;Rajender Boddula;魏玉轩;赵唱;辛琪;王娇娜;杜银芳;马兰;郭北斗;宫建茹

作者机构：Chinese Academy of Sciences(CAS)Center for Excellence in NanoscienceCAS Key Laboratory of Nanosystem and Hierarchy FabricationNational Center for Nanoscience and TechnologyBeijing 100190China University of CASBeijing 100049China Beijing Institute of Fashion TechnologyBeijing 100029China 

出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)

年 卷 期：2020年第41卷第1期

页      面：2-8页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：financial support for this work from the National Natural Science Foundation of China (21422303, 21573049, 21872043, 81602643) Beijing Natural Science Foundation (2142036) Youth Innovation Promotion Association Special Program of “One Belt One Road” of CAS~~ 

主　　题：Core/shell nanowire GaP GaPN Hydrogen production Si Solar water splitting Tandem structure 

摘      要：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.