Photoluminescence wandering in single CdSe nanocrystals

被引：94

作者：

Blanton, SA

Hines, MA

GuyotSionnest, P

机构：

[1] James Franck Institute, University of Chicago, Chicago

来源：

APPLIED PHYSICS LETTERS | 1996年 / 69卷 / 25期

关键词：

D O I：

10.1063/1.117565

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Low temperature two-photon fluorescence excitation microscopy was used to obtain fluorescence spectra of single CdSe colloidal nanocrystals or quantum dots. The fluorescence spectra reveal large, 0.02 eV shifts of the peak emission wavelength on limes of the order of 100 s were also observed in some instances. We attribute this behavior to excited state coupling to photoinduced changes at the nanocrystal surface. (C) 1996 American Institute of Physics.

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页码：3905 / 3907

页数：3

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