Synthesis and Photocurrent Performance of Graphene Oxide-CdTe/CdS Nanocomposite

被引：0
|
作者：
Ding, Liyun [1 ]
Zhang, Bingyu [1 ]
Li, Tao [1 ]
Huang, Jun [1 ]
Fan, Xiaochun [2 ]
机构：
[1] Wuhan Univ Technol, Natl Engn Lab Fiber Opt Sensing Technol, Wuhan 430070, Peoples R China
[2] Wuhan Univ Technol, Sch Civil Engn & Architecture, Wuhan 430070, Peoples R China
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2015年 / 15卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Nanocomposites; Graphene Oxide-CdTe/CdS; Luminescence; Fluorescence Quenching; Photocurrent Enhancement; CDSE QUANTUM DOTS; ELECTROCATALYST; REDUCTION;
D O I：
10.1166/jnn.2015.11591
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Graphene with two-dimensional carbon nanostructures provides a potent strategy to enhance optoelectronic performance of semiconductor nanoparticles based light harvesting assemblies. Graphene oxide-CdTe/CdS (GO-CdTe/CdS) nanocomposites were successfully prepared by CdTe/CdS quantum dots (QDs) formed on the surface of graphene oxide sheets. The structure and optical properties of GO-CdTe/CdS nanocomposites were studied in detail. Photoluminescence measurements showed that the integration of CdTe/CdS QDs with graphene oxide significantly decreased its photoluminescence, which indicated effective transfer of photo-excited electrons from CdTe/CdS to graphene oxide. The generation of photocurrent on illumination of the GO-CdTe/CdS nanocomposite was studied. Significant enhancement in photocurrent induced by GO in CdTe/CdS QDs film had also been demonstrated due to increasing the charge separation and electron conduction.
引用
收藏
页码：9824 / 9828
页数：5
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