Density dependence of photoluminescence lifetime of CdSe/ZnS core-shell colloidal quantum dots

被引：4

作者：

Kawata, G. ^{[1
]}

Ogawa, Y. ^{[1
]}

Minami, F. ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 110卷 / 06期

关键词：

NANOCRYSTALS; EFFICIENCY;

D O I：

10.1063/1.3642074

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We measured the density dependence of both the photoluminescence (PL) spectrum and the PL lifetime of CdSe/ZnS core-shell colloidal quantum dots (QDs) from 0.01 to 10.0 nmol/ml at room temperature. We found that the PL lifetime increased drastically while the PL spectrum changed slightly with an increase in the density of the QDs. The density dependence of the PL lifetime is explained using the imprisonment of resonance radiation model, which has been discussed in atomic systems. (C) 2011 American Institute of Physics. [doi:10.1063/1.3642074]

引用

页数：4

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