Sensitization of Perovskite Strontium Stannate SrSnO3 towards Visible-Light Absorption by Doping

被引：15
|
作者：
Chen, Hungru [1 ]
Umezawa, Naoto [1 ,2 ,3 ]
机构：
[1] Natl Inst Mat Sci, Environm Remediat Mat Unit, Tsukuba, Ibaraki 3050044, Japan
[2] Japan Sci & Technol Agcy JST, PRESTO, Kawaguchi, Saitama 3320012, Japan
[3] Tianjin Univ, Sch Mat Sci & Engn, TU NIMS Joint Res Ctr, Tianjin 300072, Peoples R China
来源：
INTERNATIONAL JOURNAL OF PHOTOENERGY | 2014年 / 2014卷
基金：
日本科学技术振兴机构;
关键词：
INORGANIC MATERIALS;
D O I：
10.1155/2014/643532
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Perovskite strontium stannate SrSnO3 is a promising photocatalyst. However, its band gap is too large for efficient solar energy conversion. In order to sensitize SrSnO3 toward visible-light activities, the effects of doping with various selected cations and anions are investigated by using hybrid density functional calculations. Results show that doping can result in dopant level to conduction band transitions which lie lower in energy compared to the original band gap transition. Therefore, it is expected that doping SrSnO3 can induce visible-light absorption.
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页数：3
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