Origin of the Fine Structure of Ultraviolet and Visible Spectra of Silicon Nanocolloids in 2-Propanol  

作　　者：ZHU Yong ZHANG Li-de 朱勇;张立德(Institute of Solid State Physics,Chinese Academy of Sciences,Hefei 230031)

机构地区：[1]Institute of Solid State Physics,Chinese Academy of Sciences,Hefei 230031

出　　处：《Chinese Physics Letters》1997年第11期873-875,共3页中国物理快报（英文版）

基　　金：Supported by the Chinese Academy of Sciences

摘　　要：The origin of the fine structure of ultraviolet and visible absorption spectra of silicon nanocolloids in 2-propanol prepared in Ar atmosphere by a new sputtering method is studied.The fine structure is described by phonon-electron coupling in electron transition of silicon.On the basis of the structure model of Si-Si_(4-n)O_(n)(n=0,1,2,3,4),an energy relation has been proposed to explain the fine structure.The fine structure indicates strong multiple phonon absorption which depends on that how many oxygen atoms the silicon atom bonds to.

关 键 词：structure PHONON ABSORPTION 

分 类 号：O64[理学—物理化学]