Direct observation of sp3 bonding in tetrahedral amorphous carbon UV Raman spectroscopy

被引：33

作者：

Gilkes, KWR

Sands, HS

Batchelder, DN

Milne, WI

Robertson, J

机构：

[1] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England

[2] Univ E Anglia, Sch Phys, Norwich NR4 7TJ, Norfolk, England

[3] Univ Leeds, Dept Phys, Leeds LS2 9JT, W Yorkshire, England

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1998年 / 227卷

关键词：

sp(3) bonding; Raman spectroscopy; tetrahedral amorphous carbon;

D O I：

10.1016/S0022-3093(98)00190-2

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

It is shown that Raman spectroscopy using UV excitation at 244 nm directly reveals the vibrational modes of sp(3) sites in tetrahedral amorphous carbon (ta-C). The spectrum of ta-C consists of two bands around 1100 cm(-1) and 1600 cm(-1), which appear to arise from sp(2) sites and sp(3) sites, respectively. Analysis of the spectra shows that the 1100 cm(-1) mode arises from a coupling to a states and it shifts from about 1400 cm(-1) to 1100 cm(-1) with increasing sp3 content. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：612 / 616

页数：5

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