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Title: Bismuth Vanadate as a Platform for Accelerating Discovery and Development of Complex Transition-Metal Oxide Photoanodes

Development of practical systems for photoelectrochemical conversion of solar energy to chemical fuel requires light absorbers that are efficient, durable, and scalable. Because no material currently meets all three requirements, intensive semiconductor discovery efforts are underway, with a major focus on complex metal oxides. Discovery and development of next-generation light absorbers can be accelerated by gaining mechanistic insights into the function of existing systems. BiVO 4 embodies many key characteristics of the broader class of transition-metal oxides. Thus, it is well-suited as a platform for elucidating the critical roles of charge localization, defects, and chemical interactions on photoelectrochemical performance characteristics. In this work, we discuss how comprehensive characterization of electronic structure and semiconductor properties can advance theoretical models, approaches to addressing inefficiencies and instabilities, and prediction of new materials. Studies of BiVO 4 provide a general framework for understanding mechanisms in emerging materials and a foundation for discovering new ones.
Authors:
ORCiD logo [1] ;  [1] ;  [1] ;  [2]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Chemical Sciences Division
  2. Swiss Federal Inst. of Technology Lausanne (EPFL) (Switzerland). Dept. of Chemical Sciences and Engineering
Publication Date:
Grant/Contract Number:
AC02-05CH11231; SC0004993; PYAPP2_166897/1
Type:
Published Article
Journal Name:
ACS Energy Letters
Additional Journal Information:
Journal Volume: 2; Journal Issue: 1; Related Information: © 2016 American Chemical Society.; Journal ID: ISSN 2380-8195
Publisher:
American Chemical Society (ACS)
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division; Swiss National Science Foundation (SNF); California Inst. of Technology (CalTech), Pasadena, CA (United States). Joint Center for Artificial Photosynthesis (JCAP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 14 SOLAR ENERGY
OSTI Identifier:
1341224
Alternate Identifier(s):
OSTI ID: 1458485