Experimental visualization of covalent bonds and structural disorder in a gallium zinc oxynitride photocatalyst (Ga1−xZnx)(N1−xOx): origin of visible light absorption

Masatomo Yashima,Kazunari Domen,Kazuhiko Maeda,Hiroki Yamada

doi:10.1039/b922008a

Experimental visualization of covalent bonds and structural disorder in a gallium zinc oxynitride photocatalyst (Ga1−xZnx)(N1−xOx): origin of visible light absorption

Masatomo Yashima, Kazunari Domen + Show 2 more

https://doi.org/10.1039/b922008a

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Journal: Chemical Communications	Publication Date: Jan 1, 2010
Citations: 54

Affiliation: Tokyo Institute of Technology, The University of Tokyo

#Split Sites #Difference In Band Gap + Show 8 more

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Abstract

We present the experimental visualization of covalent bonding, positional disorders and split anion sites in visible-light responsive photocatalyst (Ga(0.885)Zn(0.115))(N(0.885)O(0.115)). ZnO alloying into GaN reduces the band gap, leading to the visible-light response. DFT calculations indicated no significant difference in band gap between structural models with and without split sites.

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