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

页码：2493 / 2496

页数：4

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