Photoluminescence dynamics in CuCl thin films under high-dense one- and two-photon excitations

被引：0
作者：
Ando, Mitsutake [1 ]
Uozumi, Shin-ichi [1 ]
Katayama, Ikufumi [1 ]
Ichimiya, Masayoshi [2 ,3 ]
Ashida, Masaaki [3 ]
Takeda, Jun [1 ]
机构：
[1] Yokohama Natl Univ, Grad Sch Engn, Dept Phys, Yokohama, Kanagawa 2408501, Japan
[2] Osaka Dent Univ, Osaka 5731121, Japan
[3] Osaka Univ, Dept Mat Engn Sci, Osaka 5608531, Japan
来源：
PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 9, NO 12 | 2012年 / 9卷 / 12期
基金：
日本学术振兴会;
关键词：
biexciton; exciton-exciton scattering; CuCl; optical Kerr gate; VACUUM DEPOSITION; LUMINESCENCE; BIEXCITONS;
D O I：
10.1002/pssc.201200278
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have investigated photoluminescence (PL) dynamics in CuCl thin films under high-density one- and two-photon excitations for excitonic states. Using the optical Kerr gate method, the formation and decay processes of biexctions were observed, and the time-dependent effective temperature was evaluated. We also observed the SHG signals for the excitation laser pulses under the two-photon excitation. However, we could not observe the PL band due to exciton-exciton scattering processes (so-called P emission) under any experimental conditions because of the high thermal stability of biexcitons in CuCl thin films. (C) 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：2493 / 2496
页数：4
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