Chin. Phys. Lett.  2011, Vol. 28 Issue (5): 057301    DOI: 10.1088/0256-307X/28/5/057301
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
Photocatalysis of InGaN Nanodots Responsive to Visible Light
WANG Lai**, ZHAO Wei, HAO Zhi-Biao, LUO Yi
Tsinghua National Laboratory for Information Science and Technology/State Key Laboratory on Integrated Optoelectronics, Department of Electronic Engineering, Tsinghua University, Beijing 100084
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WANG Lai, ZHAO Wei, HAO Zhi-Biao et al  2011 Chin. Phys. Lett. 28 057301
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Abstract 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.
Keywords: 73.63.Kv      78.47.Jd      78.55.Cr     
Received: 30 September 2010      Published: 26 April 2011
PACS:  73.63.Kv (Quantum dots)  
  78.47.jd (Time resolved luminescence)  
  78.55.Cr (III-V semiconductors)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/28/5/057301       OR      https://cpl.iphy.ac.cn/Y2011/V28/I5/057301
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WANG Lai
ZHAO Wei
HAO Zhi-Biao
LUO Yi
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