Photoluminescence spectroscopy of CdSe nanoparticles embedded in transparent glass

被引：0
|
作者：
M. Gilic
R. Kostic
D. Stojanovic
M. Romcevic
B. Hadzic
M. Petrovic
U. Ralevic
Z. Lazarevic
J. Trajic
J. Ristić-Djurovic
J. Cirkovic
N. Romcevic
机构：
[1] Institute of Physics Belgrade,
[2] University of Belgrade,undefined
[3] Institute for Multidisciplinary Research,undefined
[4] University of Belgrade,undefined
来源：
Optical and Quantum Electronics | 2018年 / 50卷
关键词：
Cadmium selenide; Nanoparticles; Photoluminescence; AFM; Effective mass approximation;
D O I：
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学科分类号：
摘要：
In this paper we present photoluminescence measurements of CdSe nanoparticles embedded in transparent glass. Sample is prepared using an original technique, which combines both heat treatment and ultraviolet laser irradiation. Photoluminescence spectra displayed one main emission band at 2.14 eV. We identify this bands energy as basic interband transition in CdSe nanoparticle. We calculated energy of basic (1sh–1se) transition in spherical CdSe quantum dot (QD), within infinite potential barrier, in effective-mass approximation. On the basis of this model, average radius of synthesized CdSe QDs is about 3 nm, which is in consistence with AFM measurements and UV–VIS absorption measurements.
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