Phenomenological description of phonon confinement in semiconductor nanocrystals

被引：1
|
作者：
Singh, R [1 ]
Prakash, S
机构：
[1] Panjab Univ, Dept Phys, Chandigarh 160014, India
[2] Jiwaji Univ, Gwalior 474011, India
来源：
SURFACE SCIENCE | 2003年 / 532卷
关键词：
Raman scattering spectroscopy; semiconducting surfaces; clusters;
D O I：
10.1016/S0039-6028(03)00100-6
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The average function (average of sine and Gaussian functions) is used to investigate the vibrational properties of spherical semiconductor nanocrystals within the framework of phenomenological phonon confinement model [Solid State Commun. 39 (1981) 625]. The results for the phonon confinement and Raman intensity peaks are quite in agreement with the microscopic calculations. It is proposed here that the average function should be used as a phonon weighting function for the spherical nanocrystals, if the phonon confinement model [Solid State Commun. 39 (1981) 625] is being used to investigate their vibrational properties. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：780 / 784
页数：5
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