嵌埋在多孔硅中硅团簇的拉曼谱

Raman Spectra of Silicon Cluster Embedded in Porous Silicon

嵌埋在多孔硅中硅团簇的拉曼谱程光煦＊＋刘峰奇＋洪建明＊廖良生＋王广厚＋（南京大学现代分析中心＊及固体微结构物理国家实验室＋南京２１００９３）娄莉华（中国药科大学南京２１０００９）ＲａｍａｎＳｐｅｃｔｒａｏｆＳｉｌｉｃｏｎＣｌｕｓｔｅｒＥｍｂｅｄｄｅｄ...

Abstract Silicon cluster embedded in porous silicon were investigated by Raman scattering. The spectral peaks (TO like mode) near 500 cm -1 , have obvious varies for different preparation conditions, and no peak at 480 cm -1 was observed, which implies no real contribution from amorphous component. The Raman feature are also presented for lower energy region, e.g.TA like mode and LA like mode are shown at 218 cm -1 and 302 (or 296) cm -1 , respectively. The sizes observed by TEM are compared with that calculated by the formula.