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纳米尺寸CdS半导体微晶的光致发光线宽宽化研究
引用本文:吕少哲,孙聆东,赵家龙,窦恺,黄世华,虞家琪,向卫东,丁子上.纳米尺寸CdS半导体微晶的光致发光线宽宽化研究[J].发光学报,1996(1).
作者姓名:吕少哲  孙聆东  赵家龙  窦恺  黄世华  虞家琪  向卫东  丁子上
作者单位:中国科学院激发态物理开放实验室,浙江大学材料科学工程系
基金项目:国家自然科学基金,中国科学院激发态物理开放实验室基金
摘    要:测量了各种温度下玻璃中掺杂纳米尺寸CdS半导体微晶的光致发光光谱,研究了其光致发光带的峰值能量和线宽对温度的依赖关系.考虑CdS微晶的LO声子的相互作用,拟合了其带隙发光带的线宽随温度的变化曲线,获得样品的非均匀线宽.CdS微晶的非均匀线宽主要是由于微晶的尺寸分布引起的.

关 键 词:光致发光,CdS半导体微晶,线宽

INVESTIGATION OF THE PHOTOLUMINESCENCE LINE-WIDTH BROADENING IN NANOMETER-SIZE CdS SEMICONDUCTOR MICROCRYSTALLITES
Lu Shaozhe, Sun Lingdong, Zhao Jialong, Don Kai, Huang Shihua, Yu Jiaqi.INVESTIGATION OF THE PHOTOLUMINESCENCE LINE-WIDTH BROADENING IN NANOMETER-SIZE CdS SEMICONDUCTOR MICROCRYSTALLITES[J].Chinese Journal of Luminescence,1996(1).
Authors:Lu Shaozhe  Sun Lingdong  Zhao Jialong  Don Kai  Huang Shihua  Yu Jiaqi
Abstract:The photoluminescence spectra of nanometer-size CdS semiconductor microcrystallites doped in glass were measured at various temperatures. The temperature dependence of the peak energy and linewidth of the band-gap luminescence was investigated.Taking the LO phonon interaction into account, the linewidths of the luminescence as a function of temperature were fitted. The inhomogenous broadening constant was obtained and mainly associated with the size distribution of CdS microcrystallites.
Keywords:photoluminescence  CdS semiconductor microcrystallites  linewidth  
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