Diameter dependent Raman scattering of WS2 nanotubes

被引：17

作者：

Krause, Matthias ^{[1
]}

Virsek, Marko ^{[2
]}

Remskar, Maja ^{[2
]}

Kolitsch, Andreas ^{[1
]}

Moeller, Wolfhard ^{[1
]}

机构：

[1] Forschungszentrum Dresden Rossendorf, Inst Ionenstrahlphys & Mat Forsch, D-01314 Dresden, Germany

[2] Jozef Stefan Inst, Ljubljana 1000, Slovenia

来源：

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

关键词：

FULLERENE-LIKE STRUCTURES; NANOSTRUCTURES; NANOPARTICLES; DISULFIDE; 2H-WS2; MOS2;

D O I：

10.1002/pssb.200982275

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The effect of the tube diameter and of the surface layer on the Raman spectra Of WS2 nanotubes is investigated. With decreasing diameter, a disorder-induced line in the A(1g) mode range, the D-A(1g) line, is selectively enhanced. This enhancement is attributed to an increasing structural disorder in smaller nanotubes. On the other hand, no significant effect on the D-A(1g)/A(1g), intensity ratio is observed for a Raman scan perpendicular to a 290 nm diameter tube. Therefore the enhancement of the disorder-induced line is an intrinsic property of WS2 nanostructures and not a surface layer effect. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：2786 / 2789

页数：4

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