Unassisted overall water splitting with a solar-to-hydrogen efficiency of over 10% by coupled lead halide perovskite photoelectrodes  

作　　者：Ryan Rhee Tae G.Kim Gyu Y.Jang Gwangmin Bae Jung H.Lee Sunje Lee Sungsoon Kim Seokwoo Jeon Jong H.Park 

机构地区：[1]Department of Chemical and Biomolecular Engineering,Yonsei University,Seoul,Republic of Korea [2]Department of Materials Science and Engineering,KAIST Institute for The Nanocentury(KINC),Korea Advanced Institute of Science and Technology(KAIST),Daejeon,Republic of Korea

出　　处：《Carbon Energy》2023年第1期134-143,共10页碳能源（英文）

基　　金：funded by the Ministry of Science and ICT(2019R1A2C3010479,2019M1A2A2065612,2021M3H4A1A03049662);Yonsei-KIST Convergence Research Program.

摘　　要：Hydrogen is a promising future sustainable fuel candidate with boundless opportunities.Research into photoelectrochemical(PEC)water splitting based on a lead halide perovskite(LHP)has progressed significantly with the aim of more efficient solar hydrogen production.Herein,we unite a well-known photo-absorbing LHP with cost-effective water-splitting catalysts,and we introduce two types of monolithic LHP-based PEC devices that act as a photocathode and a photoanode for the hydrogen evolution reaction and oxygen evolution reaction,leading to efficient unbiased overall water splitting.Through the integration of these two monolithic LHP-based photoelectrodes,an unbiased solar-to-hydrogen conversion efficiency of 10.64%and a photocurrent density of 8.65 mA cm^(−2) are achieved.

关 键 词：PEROVSKITE photoelectrochemical cell PHOTOELECTRODE unassisted 

分 类 号：TM914.4[电气工程—电力电子与电力传动]