Saturation of absorption by lead sulfide nanoparticles in the main absorption band region

被引：2
作者：
Malyarevich A.M. [1 ]
机构：
[1] National Research Institute of Optical Materials and Technologies, Belorussian National Technical University, Minsk 220013
来源：
Journal of Applied Spectroscopy | 2006年 / 73卷 / 2期
关键词：
Excited state absorption; PbS nanoparticles; Saturation of absorption;
D O I：
10.1007/s10812-006-0061-9
中图分类号：
学科分类号：
摘要：
The spectral dependence of the degree of bleaching of glasses with PbS nanoparticles (average radius from 3 to 4 nm) has been studied in the main absorption band region. It has been established that the level of residual absorption in the bleached state decreases from 0.70 to 0.02 as we go from the high-frequency edge of the main absorption band for the lead sulfide nanoparticles toward the low-frequency edge, and reflects the spectral features of absorption by charge carriers in excited states. © 2006 Springer Science+Business Media, Inc.
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页码：216 / 221
页数：5
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