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题名: Direct Imaging of Highly Anisotropic Photogenerated Charge Separations on Different Facets of a Single BiVO4 Photocatalyst
作者: Zhu, Jian1, 2;  Fan, Fengtao1;  Chen, Ruotian1, 2;  An, Hongyu1, 2;  Feng, Zhaochi1;  Li, Can1
关键词: charge carrier injection ;  charge separation ;  crystal engineering ;  imaging ;  photocatalysis
刊名: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
发表日期: 2015-07-27
DOI: 10.1002/anie.201504135
卷: 54, 期:31, 页:9111-9114
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: Spatially resolved surface photovoltage spectroscopy (SRSPS) was employed to obtain direct evidence for highly anisotropic photogenerated charge separation on different facets of a single BiVO4 photocatalyst. Through the controlled synthesis of a single crystal with preferentially exposed {010} facets, highly anisotropic photogenerated hole transfer to the {011} facet of single BiVO4 crystals was observed. The surface photovoltage signal intensity on the {011} facet was 70 times stronger than that on the {010} facets. The influence of the built-in electric field in the space charge region of different facets on the anisotropic photoinduced charge transfer in a single semiconductor crystal is revealed.
关键词[WOS]: SEMICONDUCTOR SURFACES ;  PROBE MICROSCOPY ;  FORCE MICROSCOPY ;  SOLAR-CELLS ;  CRYSTAL ;  PHOTOVOLTAGE
语种: 英语
WOS记录号: WOS:000358501500045
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146417
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, iChEM,Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Zhu, Jian,Fan, Fengtao,Chen, Ruotian,et al. Direct Imaging of Highly Anisotropic Photogenerated Charge Separations on Different Facets of a Single BiVO4 Photocatalyst[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2015,54(31):9111-9114.
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