Structural and optical investigation of semiconductor CdSe/CdS core-shell quantum dot thin films

被引：19
|
作者：
Sharma, A. B. [2 ]
Sharma, Sudhir Kumar [1 ,2 ]
Sharma, M. [2 ]
Pandey, R. K. [2 ]
Reddy, D. S. [3 ]
机构：
[1] Indian Inst Sci, Dept Instrumentat, Bangalore 560012, Karnataka, India
[2] Barkatullah Univ, Dept Phys, Bhopal 462026, MP, India
[3] Chungbuk Natl Univ, Dept Phys, Cheongju 361763, South Korea
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2009年 / 72卷 / 02期
关键词：
Semiconductor quantum dots; X-ray diffraction studies (XRD); Transmission electron microscopy (TEM); Optical absorption spectroscopy; CORE/SHELL NANOCRYSTALS; LUMINESCENT; GROWTH; SERIES; CDS;
D O I：
10.1016/j.saa.2008.09.031
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Highly luminescent CdSe/CdS core-shell nanocrystals have been assembled on indium tin oxide (ITO) coated glass substrates using a wet synthesis route. The physical properties of the quantum dots (QD) have been investigated using X-ray diffraction, transmission electron microscopy and optical absorption spectroscopy techniques. These quantum dots showed a strong enhancement in the nearband edge absorption. The in situ luminescence behavior has been interpreted in the light of the quantum confinement effect and induced strain in the core-shell structure. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：285 / 290
页数：6
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