Raman identification of onion-like carbon

被引：191

作者：

Obraztsova, ED

Fujii, M

Hayashi, S

Kuznetsov, VL

Butenko, YV

Chuvilin, AL

机构：

[1] Russian Acad Sci, Inst Gen Phys, Moscow 117942, Russia

[2] Kobe Univ, Fac Engn, Dept Elect & Elect Engn, Kobe, Hyogo 657, Japan

[3] Russian Acad Sci, Boreskov Inst Catalysis, Novosibirsk 630090, Russia

来源：

CARBON | 1998年 / 36卷 / 5-6期

关键词：

diamond; electron microscopy; Raman spectroscopy; lattice dynamics;

D O I：

10.1016/S0008-6223(98)00014-1

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：

A specific Raman spectrum of carbon spherical shells (onions) synthesized by annealing-induced (T=1800 K) chipping off the outer carbon layers from 5-nm size diamond particles has been observed. It shows a clearly seen band at 1572 cm(-1). Its downshift from the position 1582 cm(-1) (known for a pure graphite) is interpreted as an influence of shell curvature. The summary contribution of the shells constituting the 5-nm diameter onion is estimated. A narrowness (FWHM = 15 cm(-1)) of the first order Raman band of onions together with a dominance of the peak at 2712 cm(-1) (FWHM = 65 cm(-1)) in their second order spectrum point to a high degree of structural perfection of a graphitic network in shells. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：821 / 826

页数：6

共 28 条

[1] SPATIALLY RESOLVED RAMAN STUDIES OF DIAMOND FILMS GROWN BY CHEMICAL VAPOR-DEPOSITION [J].