Interlayer Interaction Effects on the G Modes in Double-Walled Carbon Nanotubes With Different Electronic Configurations

被引：11

作者：

Levshov, Dmitry I. ^{[1
,2
]}

Huy-Nam Tran ^{[1
]}

Michel, Thierry ^{[1
]}

Thi Thanh Cao ^{[3
]}

Van Chuc Nguyen ^{[3
]}

Arenal, Raul ^{[4
,5
]}

Popov, Valentin N. ^{[6
]}

Sauvajol, Jean-Louis ^{[1
]}

Zahab, Ahmed-Azmi ^{[1
]}

Paillet, Matthieu ^{[1
]}

机构：

[1] Univ Montpellier, Lab Charles Coulomb, Pl Eugene Bataillon CC026, F-34095 Montpellier, France

[2] Southern Fed Univ, Rostov Na Donu 344090, Russia

[3] Vietnam Acad Sci & Technol, Inst Mat Sci, 18 Hoang Quoc Viet, Hanoi, Vietnam

[4] Inst Nanociencia Aragon, Campus Rio Ebro,Edificio I D, Zaragoza 50018, Spain

[5] ARAID Fdn, Zaragoza 50018, Spain

[6] Univ Sofia, Fac Phys, 5 James Bourchier Blvd, Sofia 1164, Bulgaria

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2017年 / 254卷 / 11期

关键词：

double-walled carbon nanotubes; interlayer interaction; Raman spectroscopy; RAMAN-SPECTROSCOPY;

D O I：

10.1002/pssb.201700251

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present experimental measurements of the features of G band in individual index-identified free-standing double-walled carbon nanotubes. We examine Raman spectra of different electronic configurations of DWNTs, namely: SC@SC, SC@M, M@SC, M@M, and clearly establish that, as in SWNTs, the profile of LO G-mode of each layer is broad (narrow) when the layer is metallic (semiconducting). The dependence of G-modes on the diameter and inter-layer distance in several SC@SC, SC@M, M@SC, M@M index-identified DWNTs is reported. We find, that, independently of the metallic or semiconducting nature of the layers, the frequencies of LO and TO G-mode of the inner and outer layers shift significantly with respect to the frequencies of the same modes in the constituent SWNTs.

引用

页数：8

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