Enhanced dipole-dipole interaction of CdSe/CdS nanocrystal quantum dots inside a planar microcavity

被引：48
作者：
Wang, Xiaoyong [1 ]
Shih, Chih-Kang
Xu, Jianfeng
Xiao, Min
机构：
[1] Univ Texas, Dept Phys, Austin, TX 78712 USA
[2] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA
来源：
APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 11期
基金：
美国国家科学基金会;
关键词：
FORSTER ENERGY-TRANSFER; OPTICAL MICROCAVITIES; EMISSION; POLYMER; SOLIDS; FILMS;
D O I：
10.1063/1.2352802
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The energy transfer (ET) dynamics of closely packed CdSe/CdS nanocrystal quantum dots (NQDs) embedded in a planar microcavity were studied by using time-resolved photoluminescence measurements. An increase of similar to 20% was observed in the rates of ET from smaller to larger NQDs in the microcavity as compared with those measured in free space. This behavior was attributed to the enhanced dipole-dipole interactions between donor and acceptor NQDs at the spectral positions of the cavity modes. (c) 2006 American Institute of Physics.
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