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

页码：285 / 290

页数：6

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