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至尊木虫 (职业作家)

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kanl331(金币+50, 翻译EPI+1): 欢迎你多多指点 3q 2011-06-01 10:02:43

Hot filament and microwave plasma CVD micro- nanocrystalline diamond films are analysed by visible and ultra-violet excitation source Raman spectroscopy. Hot filament and microwave plasma CVD 微纳米晶体金刚石膜以可见和紫外激发光源拉曼广谱法加以分析。The sample grain size varies from 20 nm to 2 μm.样品晶粒大小为20nm到2μm不等。 The hydrogen concentration in samples is measured by SIMS and compared to the grain size, and to the ratio of sp2 carbon bonds determined by Raman spectroscopy from the 1332 cm−1 diamond peak and the sp2 1550 cm−1 G band. 样品中氢的浓度以SIMS测量并和晶粒尺寸以及由拉曼光谱测得的1332 cm−1金刚石峰的sp2碳带和1550cm-1的G带sp2之比相比较。Hydrogen concentration appears to be proportional to the sp2 bonds ratio. 氢浓度好像是与sp2谱带比成比例。The 3000 cm−1 CHx stretching mode band intensity observed on the Raman spectra is decreasing with the G band intensity. 在拉曼光谱上观测到，3000cm-1的CHx伸展模式谱带的强度随G带强度增加而减小。Thermal annealing modifies the sp2 phase structure and concentration, as hydrogen outdiffuses.热处理时，氢向外扩散，sp2相的结构和浓度被修改。

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