Thermal stability studies of CVD-grown graphene nanoribbons: Defect annealing and loop formation

被引：164

作者：

Campos-Delgado, J. ^{[1
,2
]}

Kim, Y. A. ^{[3
]}

Hayashi, T. ^{[3
]}

Morelos-Gomez, A. ^{[1
,2
,7
]}

Hofmann, M. ^{[5
,6
]}

Muramatsu, H. ^{[4
]}

Endo, M. ^{[3
,4
]}

Terrones, H. ^{[1
,2
]}

Shull, R. D. ^{[7
]}

Dresselhaus, M. S. ^{[7
]}

Terrones, M. ^{[1
,2
]}

机构：

[1] IPICYT, Lab Nanosci & Nanotechnol Res LINAN, San Luis Potosi 78216, Mexico

[2] IPICYT, Adv Mat Dept, San Luis Potosi 78216, Mexico

[3] Shinshu Univ, Fac Engn, Nagano 3808553, Japan

[4] Shinshu Univ, Inst Carbon Sci & Technol, Nagano, Japan

[5] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

[6] MIT, Dept Phys, Cambridge, MA 02139 USA

[7] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 469卷 / 1-3期

关键词：

CARBON NANOTUBES; PURIFICATION; FORM;

D O I：

10.1016/j.cplett.2008.12.082

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present a high temperature heat treatment study of CVD-grown graphene nanoribbons annealed up to 2800 degrees C, demonstrating a progressive annihilation of lattice defects as the heat treatment temperature is raised. Starting at 1500 degrees C, single and multiple loop formation were observed on the ribbons edges as the temperature was increased. The structural changes of the samples are documented by X-ray diffraction, Raman spectroscopy, TGA, SEM, and HRTEM. This work indicates that nanoribbon annealing eventually leads to defect-free samples, through graphitization and edge loop formation. The annealed material exhibits structural differences that could be tailored for a variety of specific applications. (C) 2009 Elsevier B. V. All rights reserved.

引用

页码：177 / 182

页数：6

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