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运用光发射谱(OES)技术对大功率直流电弧等离子喷射CVD金刚石膜的气相沉积环境进行了原位诊断,研究了气相环境中主要含碳基团的浓度及分布与沉积参数的关系,发现了C2基元比其他基元对沉积参数更加敏感.利用光发射谱对C2基元发射强度的监测,实时调控沉积各参数,在大功率直流电弧等离子喷射CVD中实现了(111)晶面占优的金刚石膜的可控生长,I(111)/I(220)XRD衍射峰强度的比值达48.

参考文献

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