采用微波等离子体化学气相沉积法,以甲烷和氮气为气源,通过改变反应气体中氢气的浓度,在硅衬底上沉积出掺杂氮的超纳米金刚石膜.并利用扫描电子显微镜,拉曼光谱仪,X射线衍射仪,霍尔效应测试仪分别对掺杂氮的超纳米金刚石膜的表面形貌,组成结构及导电性能进行了进行表征,重点研究了氢气浓度对薄膜特性的影响.结果表明:随着氢气浓度的增加,薄膜的晶粒尺寸逐渐增大;薄膜的质量提高,且由G峰漂移引起的压应力逐渐减小;薄膜导电性变差.
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