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蓝光发射和红光发射多孔硅的XPS分析
引用本文:郭常新,李碧琳.蓝光发射和红光发射多孔硅的XPS分析[J].发光学报,1997,18(2):127-132.
作者姓名:郭常新  李碧琳
作者单位:1. 中国科学技术大学物理系, 合肥 230026;2. 中国科学技术大学结构成份开放研究实验室, 合肥 230026
摘    要:绿色发光多孔硅在空气中经两种不同的氧化处理分别得到红色发光和蓝色发光.X射线光电子能谱分析显示红色发光多孔硅中含有一定比例的Si、SiOx(x=1~2)以及少量的氟化物;蓝色发光多孔硅的主要成份是SiO2及少量的氟化物.红处透射谱显示蓝光发射多孔硅几乎只存在Si-O-Si峰,而红光发射多孔硅除主要有Si-O-Si峰外,还有明显的SiHx峰.分析表明多孔硅中的蓝光发射来源于SiO2中的缺陷中心.

关 键 词:多孔硅  发光  X射线光电子谱
收稿时间:1996-04-23

XPS INVESTIGATION OF BLUE AND RED EMITTING POROUS SILICON
Guo Changxin,Zhang Xuebing.XPS INVESTIGATION OF BLUE AND RED EMITTING POROUS SILICON[J].Chinese Journal of Luminescence,1997,18(2):127-132.
Authors:Guo Changxin  Zhang Xuebing
Institution:1. Department of Physics, University of Science and Technology of China, Hefei 230026;2. USTC Structure Research Laboratory, Hefei 230026
Abstract:Red and blue emitting porous silicon(PS)are obtained respectively through two kinds of air oxidization on the green luminescent PS. XPS investigation shows that the composition of red emitting PS are sillicon,SiOx(x=1~2)and some little fluoride and the blue emitting PS is mainly containing SiO2 and a little fluoride. IR transmition spectra show that the blue emitting PS almost only exists Si-O-Si peaks,but the red emitting PS not only mainly has Si-O-Si peaks and also has several obvious peaks of SiHx. It is suggested that the blue emission of PS comes from some defect centers in SiO2.
Keywords:porous silicon  luminescence  X  ray photoelectron spectrum  
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