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首页> 外文期刊>Physica, B. Condensed Matter >Raman scattering characterization of a carbon coating after low-energy argon ion bombardment
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Raman scattering characterization of a carbon coating after low-energy argon ion bombardment

机译：低能氩离子轰击后碳涂层的拉曼散射特性

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摘要

The characteristic of Raman scattering spectra of a carbon coating, which was modified by radio frequency argon plasma, has been investigated. The argon ion bombardment causes changes in the microstructure and amount of stress in the coating. Raman scattering spectra are discussed in terms of intensity, bandwidth and wavenumber. The evolvement of Raman spectra shows the following behavior with increasing bombardment time: the intensity changes of the disordered D band, amorphous D″ band and graphite G band could be separated into several stages; low-energy argon ion bombardment over a short period can reduce the number of defects in the carbon coating, while a larger bombardment period can increase the number of defects; the widths of the D and G bands both increase, while that of the D″ band decreases; the wavenumbers of all the three bands fluctuate according to the changes in electronic configuration and amount of stress in the carbon coating.
机译：研究了用射频氩等离子体改性的碳涂层的拉曼散射光谱的特性。氩离子轰击引起涂层的微观结构和应力量的变化。根据强度，带宽和波数讨论了拉曼散射光谱。拉曼光谱的演变表明，随着轰击时间的增加，其行为表现为：无序D带，无定形D''带和石墨G带的强度变化可以分为几个阶段;短时间内进行低能氩离子轰击可以减少碳涂层中的缺陷数量，而较大的轰击周期可以增加缺陷数量。 D和G带的宽度都增加，而D”带的宽度减小;三个波段的波数根据电子结构的变化和碳涂层的应力大小而波动。

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