Direct Imaging of Highly Anisotropic Photogenerated Charge Separations on Different Facets of a Single BiVO 4  Photocatalyst | Zendy

Zhu Jian | Zendy; Fan Fengtao | Zendy; Chen Ruotian | Zendy; An Hongyu | Zendy; Feng Zhaochi | Zendy; Li Can | Zendy

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Direct Imaging of Highly Anisotropic Photogenerated Charge Separations on Different Facets of a Single BiVO 4 Photocatalyst

Author(s) -

Zhu Jian,

Fan Fengtao,

Chen Ruotian,

An Hongyu,

Feng Zhaochi,

Li Can

Publication year - 2015

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201504135

Subject(s) - facet (psychology) , surface photovoltage , anisotropy , single crystal , materials science , semiconductor , photocatalysis , charge (physics) , electric field , spectroscopy , crystal (programming language) , optoelectronics , optics , molecular physics , chemistry , crystallography , physics , psychology , social psychology , biochemistry , programming language , personality , quantum mechanics , computer science , big five personality traits , catalysis

Spatially resolved surface photovoltage spectroscopy (SRSPS) was employed to obtain direct evidence for highly anisotropic photogenerated charge separation on different facets of a single BiVO 4 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 BiVO 4 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.

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