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Recent Advances in Earth‐Abundant Photocathodes for Photoelectrochemical Water Splitting
Author(s) -
Yang Wooseok,
Moon Jooho
Publication year - 2019
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201801554
Subject(s) - photocathode , water splitting , semiconductor , renewable energy , nanotechnology , photoelectrochemical cell , solar energy , photoelectrochemistry , hydrogen production , hydrogen fuel , materials science , hydrogen , solar energy conversion , energy transformation , engineering physics , optoelectronics , chemistry , electrochemistry , physics , photocatalysis , catalysis , electrical engineering , engineering , electrolyte , biochemistry , thermodynamics , electron , organic chemistry , electrode , quantum mechanics
The conversion of solar energy into hydrogen through photoelectrochemical (PEC) water splitting is an attractive way to store renewable energy. Despite the intriguing concept of solar hydrogen production, efficient PEC devices based on earth‐abundant semiconductors should be realized to compete economically with conventional steam reforming processes. Herein, recent milestones in photocathode development for PEC water splitting, particularly in earth‐abundant semiconductors, in terms of new techniques for enhancing performance, as well as theoretical aspects, are highlighted. In addition, recent research into newly emerging low‐cost p‐type semiconductors in the PEC field, such as Cu 2 BaSn(S,Se) 4 and Sb 2 Se 3 , are scrutinized and the advantages and disadvantages of each material assessed.