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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