Oxygen Vacancy Induced Band-Gap Narrowing and Enhanced Visible Light Photocatalytic Activity of ZnO

Wang, Junpeng; Wang, Zeyan; Huang, Baibiao; Ma, Yandong; Liu, Yuanyuan; Qin, Xiaoyan; Zhang, Xiaoyang; Dai, Ying

doi:10.1021/am300835p

Public

Oxygen Vacancy Induced Band-Gap Narrowing and Enhanced Visible Light Photocatalytic Activity of ZnO

Published in ACS Applied Materials & Interfaces • Jul 11, 2012

Authors:

Junpeng Wang

Zeyan Wang

Baibiao Huang

Abstract

Oxygen vacancies in crystal have important impacts on the electronic properties of ZnO. With ZnO(2) as precursors, we introduce a high concentration of oxygen vacancies into ZnO successfully. The obtained ZnO exhibits a yellow color, and the absorption edge shifts to longer wavelength. Raman and XPS...

Subject

Materials science

Oxygen

Band gap

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