RAMAN谱研究在退火和镍衬底上金刚石形核中甲烷的影响(英文)

Micro-Raman Study the Effect of CH 4 for Annealing and Diamond Nucleation on Ni Substrate

藉助SEM和MICRO RAMAN ,我们研究了在退火和在镍衬底上金刚石形核中甲烷CH4 的影响。CH4 的浓度分别为 0 % ,0 5 % ,1 5 %和 2 5 % ,其中当甲烷浓度为 1 5 %时 ,金刚石在镍衬底上金刚石形核密度为 3× 1 0 8/cm2 ,这个结果高于以前的结果。金刚石膜的质量是好的。

The effect of CH 4 for density and quality of diamond nuclei on nickel substrates are studied by SEM and Micro-Raman in the high-temperature annealing process. If we change the concentration of CH 4:0.5%,1.5% and 2.5%, the quality of diamond nuclei will be improved, in which the 1.5% CH 4 concentration is found to be best fit for diamond to nucleate 3×108/cm2 on nickel substrates. the density of diamond nuclei is higher than the density of nuclei on nickel substrates in previous works and the quality of diamond is good.