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Photoelectrochemical cells with tungsten trioxide/Mo-doped BiVO(4) bilayers.
MedLine Citation:
PMID:  22772604     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Mo-doped BiVO(4) nanocrystals with low bandgap energy were embedded into the surface of WO(3) film, resulting in WO(3)/BiV(0.95)Mo(0.05)O(4) photoanodes, which were tested in photoelectrochemical cells for water splitting. Bilayer photoelectrochemical cells showed enhanced photocurrent density: three times that shown by a cell with a pure WO(3) photoanode and 1.5 times that of a cell with a WO(3)/BiVO(4) bilayer photoanode. BiVO(4) showed poor charge carrier mobility; the performance of photoelectrochemical cells can be improved only when BiVO(4) is combined with a WO(3) bottom layer, even after Mo doping and tailoring its transition energies by atomic doping.
Authors:
Kan Zhang; Xin-Jian Shi; Jung Kyu Kim; Jong Hyeok Park
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-6
Journal Detail:
Title:  Physical chemistry chemical physics : PCCP     Volume:  -     ISSN:  1463-9084     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100888160     Medline TA:  Phys Chem Chem Phys     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Sungkyun Advanced Institute of Science and Technology (SAINT), Sungkyunkwan University, Suwon 440-746, Republic of Korea.
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