Determination of size and composition of optically active CdZnSe/ZnBeSe quantum dots

被引：19

作者：

Gu, Y ^{[1
]}

Kuskovsky, IL

Fung, J

Robinson, R

Herman, IP

Neumark, GF

Zhou, X

Guo, SP

Tamargo, MC

机构：

[1] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA

[2] CUNY City Coll, Dept Chem, New York, NY 10036 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 18期

关键词：

D O I：

10.1063/1.1623941

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The size and composition of optically active CdxZn1-xSe/Zn0.97Be0.03Se quantum dots (QDs) are determined using photoluminescence, photoluminescence excitation, and Raman scattering spectroscopies combined with a model of photoluminescence and LO phonon energies. The diameters of optically active QDs range from 5.1 to 8.0 nm with Cd composition in the range of 47%-54%, corresponding to the "small" QDs group. Additionally, surface phonons from QDs are observed in this system. (C) 2003 American Institute of Physics.

引用

页码：3779 / 3781

页数：3

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