Photocatalysis of InGaN Nanodots Responsive to Visible Light

被引：6
|
作者：
Wang Lai [1 ]
Zhao Wei [1 ]
Hao Zhi-Biao [1 ]
Luo Yi [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Tsinghua Natl Lab Informat Sci & Technol, State Key Lab Integrated Optoelect, Beijing 100084, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2011年 / 28卷 / 05期
基金：
北京市自然科学基金; 中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词：
N-TYPE GAN; AQUEOUS WATER; PHOTOELECTROCHEMICAL PROPERTIES; HYDROGEN GENERATION; QUANTUM-WELLS; TIO2;
D O I：
10.1088/0256-307X/28/5/057301
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Photocatalysis of InGaN nanodots grown on GaN/sapphire templates by metal organic vapor phase epitaxy is studied. Photodegradation of methylene orange by InGaN nanodots responsive to visible light is observed. Analysis through atomic force microscopy and time-resolved photoluminescence measurements show that wider bandgap of InGaN, larger specific surface area and more proportion of photocarriers diffusing to the surface before recombination are propitious to photodegradation.
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页数：4
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