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摘要: 用炸药爆轰的方法制备了纳米超微金刚石，对纳米超微金刚石进行了激光Raman光谱分析。研究发现，在1 321 cm-1和1 600 cm-1附近观察到了对应于sp3金刚石和sp2石墨的特征峰，金刚石的Raman峰向低波数方向移动了约10 cm-1，其半高宽约30 cm-1，同时在低波数方向出现尾巴，呈现非对称的Raman波谱。Raman光谱分析的结果与X射线衍射分析的结果符合。Abstract: Raman spectra of ultrafine diamond obtained from detonation are measured. The characteristic Raman bands assigned to sp3 diamond and sp2 graphite have been observed at around 1 321 cm-1 and 1 600 cm-1, respectively, in which the sp3 diamond band is asymmetric with the half-peak width of about 30 cm-1, with a tail towards lower Raman frequency and a shift of about -10 cm-1. The results obtained from Raman spectrum agree with that from X-ray diffraction.
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Key words:
- detonation /
- ultrafine diamond /
- Raman spectroscopy
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