Raman investigation of strain effects in CdSe nanorods

被引：8

作者：

Lange, Holger ^{[1
]}

Artemyev, Mikhail ^{[2
]}

Woggon, Ulrike ^{[3
]}

Thomsen, Christian ^{[1
]}

机构：

[1] Tech Univ Berlin, Inst Festkorperphys, D-10623 Berlin, Germany

[2] Belarusian State Univ, Inst Physicochem Problems, Minsk 220050, BELARUS

[3] Tech Univ Berlin, Inst Opt & Atomare Phys, D-10623 Berlin, Germany

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2009年 / 246卷 / 11-12期

关键词：

ELECTRONIC-PROPERTIES; NANOCRYSTALS; GROWTH; SHELL;

D O I：

10.1002/pssb.200982349

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We use Raman spectroscopy to investigate strain in thin CdSe-ZnS core-shell nanorods. Bare CdSe nanorods are compressed due to surface reconstruction mechanisms. The addition of an epitaxial ZnS shell around the nanorod leads to a compressive strain of the nanorod due to the lattice mismatch between ZnS and CdSe. The amount of strain in the CdSe lattice increases with an increasing shell size. Longitudinal optical phonon Raman bands of CdSe nanorods. The nanorod covered with a ZnS shell is strained and the related Raman band is shifted. [GRAPHICS] (C) 2009 WILEY-VCH Veriag GmbH & Co. KGaA, Weinheim

引用

页码：2817 / 2819

页数：3

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