Surface plasmon enhanced energy transfer in metal-semiconductor hybrid nanostructures

被引：18
作者：
Zhao, Xinhong [1 ]
Wang, Peng [1 ]
Li, Baojun [1 ]
机构：
[1] Sun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
来源：
NANOSCALE | 2011年 / 3卷 / 08期
基金：
中国国家自然科学基金;
关键词：
SOLAR-CELLS; QUANTUM; FILMS;
D O I：
10.1039/c1nr10367a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We report a type of hybrid nanostructures composed of ZnO nanoparticles, CdSe/ZnS core/shell quantum dots (QDs), and Ag nanoprisms. With ultraviolet light illumination, the energy absorbed by ZnO nanoparticles was transferred to the CdSe/ZnS core/shell QDs inducing a photoluminescence (PL) emission. To enhance the PL emission, Ag nanoprisms were doped in the ZnO nanoparticles and the QDs. Enhanced energy transfer from the ZnO nanoparticles to the QDs via the surface plasmon effect of the Ag nanoprisms was also demonstrated. The PL emission dependence was investigated as a function of the doped Ag nanoprism concentration and a 7.4 times PL enhancement was obtained at an Ag nanoprism concentration of 5 x 10(-8) M.
引用
收藏
页码：3056 / 3059
页数：4
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