Extremely large binding energy of biexcitons in an organic-inorganic quantum-well material (C4H9NH3)2PbBr4

被引：59
|
作者：
Kato, Y
Ichii, D
Ohashi, K
Kunugita, H
Ema, K
Tanaka, K
Takahashi, T
Kondo, T
机构：
[1] Sophia Univ, Dept Phys, Chiyoda Ku, Tokyo 1028554, Japan
[2] Univ Tokyo, Dept Mat Sci, Bunkyo Ku, Tokyo 1138656, Japan
来源：
SOLID STATE COMMUNICATIONS | 2003年 / 128卷 / 01期
关键词：
quantum wells; optical properties; nonlinear optics;
D O I：
10.1016/S0038-1098(03)00626-4
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have confirmed biexciton formation in an organic-inorganic hybrid quantum-well material (C4H9NH3)(2)PbBr4 by photoluminescence and two-photon absorption measurements. The biexciton has extremely large binding energy, 60 meV, which to our knowledge is the largest value ever reported for a semiconductor. By analyzing the spectrum of biexciton luminescence, the biexciton gas temperature was found to be much higher than the bath temperature due to a higher local temperature arising from the large biexciton binding energy. (C) 2003 Elsevier Ltd. All rights reserved.
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页码：15 / 18
页数：4
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