论文标题
无序晶体粉末中拉曼散射的微观理论的台式测试：纳米座和si纳米粒子
Bench tests for microscopic theory of Raman scattering in powders of disordered nonpolar crystals: nanodiamonds and Si nanoparticles
论文作者
论文摘要
在无效的非极性纳米晶体集合中，使用了拉曼散射的显微镜理论，分析了有关钻石和晶体SI纳米植物的最新拉曼数据。与散装材料中的相应峰以及对实验观察到的粒径的相应峰相比，纳米颗粒中拉曼峰的大宽度在理论的框架内解释了。结果表明，该理论能够从拉曼数据中自信地提取纳米曲德的四个重要的显微镜特征，包括平均粒径，粒度分布函数的方差，粒子中内在障碍的强度以及参数粒子形状的有效刻面数。
Recent Raman data on diamond and crystalline Si nanopowders are analyzed with the use of a microscopic theory of Raman scattering in ensembles of disordered nonpolar nanocrystals. The large width of the Raman peak in nanoparticles as compared to the corresponding peak in bulk materials and the peak inverse dependence on the particle size observed experimentally are explained within the framework of the theory. It is shown that this theory is capable to extract confidently from the Raman data four important microscopic characteristics of the nanopowder including the mean particle size, the variance of the particle size distribution function, the strength of intrinsic disorder in the particle, and the effective faceting number which parameterizes the particle shape.
