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首页> 外文会议>Symposium on Covalently Bonded Disordered Thin-Film Materials held December 2-4, 1997, Boston, Massachusetts, U.S.A. >Quantitative studies of tetrahedral bonding in amorphous carbon films using ultraviolet raman spectroscopy
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Quantitative studies of tetrahedral bonding in amorphous carbon films using ultraviolet raman spectroscopy

机译：紫外拉曼光谱定量研究非晶碳膜中四面体键合

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摘要

The bonding in a series of unhydrogenated amorphous carbon films has been analysed quantitatively using Raman spectroscopy with ultraviolet excitation. The Raman spectra exhibit two broad Raman peaks at 1650 cm~(-1) and 1100 cm~(-1), due to sp~2 and sp~3 vibrational modes respectively. The former is a resonance feature associated with a large proportion of paired sp~2 sites, while the latter is a weighted vibrational density-of-states for the distorted random network of sp~3 sites. The position and relative intensity of the two peaks are shown to be strongly correlated with the percentage of sp~3 sites in the films, providing a reliable measure of sp~3 bonding which is both quantitative and non-destructive.
机译：一系列未氢化无定形碳膜中的键合已使用拉曼光谱和紫外线激发进行了定量分析。由于分别的sp〜2和sp〜3振动模式，拉曼光谱在1650 cm〜（-1）和1100 cm〜（-1）处表现出两个宽的拉曼峰。前者是与大部分成对的sp〜2位点相关的共振特征，而后者是sp〜3位点变形的随机网络的加权振动状态密度。已显示两个峰的位置和相对强度与薄膜中sp〜3位点的百分比密切相关，从而提供了一种可靠的sp〜3键合度量，既定量又无损。

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