Bonding in hydrogenated diamond-like carbon by Raman spectroscopy

被引：373
|
作者：
Casiraghi, C
Piazza, F
Ferrari, AC
Grambole, D
Robertson, J
机构：
[1] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England
[2] Forschungszentrum Rossendorf EV, Inst Ionenstrahlphys & Mat Forsch, Dresden, Germany
来源：
DIAMOND AND RELATED MATERIALS | 2005年 / 14卷 / 3-7期
关键词：
hydrogenated amorphous carbon; Raman spectroscopy; optical properties; mechanical properties;
D O I：
10.1016/j.diamond.2004.10.030
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study the 514 and 244 nm Raman spectra of a wide variety of hydrogenated amorphous carbons (a-C:H). The hydrogen content can be estimated from the slope of the photoluminescence background (PL) of the spectra measured at 514.5 nm. Generally, the evolution of the sp(2) and sp(3) phases is not independent for as-deposited a-C:H samples. This, in principle, allows us to derive their structural and optical properties just by studying the visible Raman spectra. For highly hydrogenated samples, the PL background overshadows the visible Raman spectra, and UV excitation is the only way to measure a Raman spectrum. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：1098 / 1102
页数：5
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