The mystery of the 1140 cm-1 Raman line in nanocrystalline diamond films

被引：323

作者：

Kuzmany, H

Pfeiffer, R

Salk, N

Günther, B

机构：

[1] Univ Vienna, Inst Mat Phys, A-1090 Vienna, Austria

[2] Fraunhofer IFAM, D-28359 Bremen, Germany

来源：

CARBON | 2004年 / 42卷 / 5-6期

关键词：

diamond; chemical vapor deposition; Raman spectroscopy; chemical structure;

D O I：

10.1016/j.carbon.2003.12.045

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 strong and distinct Raman peak around 1140 cm(-1) is often taken as a simple criterion for a nanocrystalline diamond phase in deposited diamond films. However, the observation that (i) this mode is always accompanied by a mode around 1480 cm(-1) (seen around 1490 cm(-1) as a shoulder of the G-mode), (ii) both of these modes show (similar) dispersions while the diamond mode around 1332 cm(-1) does not, and (iii) these both modes vanish after thermal annealing but the diamond mode not, made this assignment doubtful. By performing a thin film preparation with deuterium and H-D substituted hydrocarbon sources we provide direct evidence that these two modes originate from trans-polyacetylene in the diamond film. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：911 / 917

页数：7

共 22 条

[1] Origin of the 1150-cm-1 Raman mode in nanocrystalline diamond -: art. no. 121405 [J].