An estimate of shape-distribution of small CdS particles with luminescence spectra

被引：0
|
作者：
V. Lozovski
G. Strilchuk
机构：
[1] Department of Semiconductor Electronics of Kyiv National Taras Shevchenko University,
来源：
The European Physical Journal B | 2007年 / 56卷
关键词：
61.46.Df Nanoparticles; 78.67.Bf Nanocrystals and nanoparticles;
D O I：
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学科分类号：
摘要：
The luminescence spectra of CdS particles obtained by sedimentation method are studied. The comparison of measured and calculated photoluminescence spectra was used as the base of the method defining the shape distribution of the particles. For this purpose one can use the symmetry rule for absorption and luminescence spectra. Absorption spectra were calculated via dissipative function in terms of local field theory. The experimental spectra of the photoluminescence were measured during the process of sedimentation in the CdS nano-composite powder. The modification of luminescence spectra detected during sedimentation time is associated with changing the dimension and shape distributions of CdS suspension. As a result, the particles shape distribution was estimated for sizes less then 1 μm.
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页码：297 / 302
页数：5
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