Induced absorption and spontaneous emission due to biexciton in two-dimensional semiconductor (CH3C6H4CH2NH3)2PbBr4 single crystal

被引：12

作者：

Makino, H

Goto, T

Yao, T

Mousdis, GA

Papavassillou, GC

机构：

[1] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

[2] Tohoku Univ, Interdisciplinary Res Ctr, Sendai, Miyagi 9808578, Japan

[3] Natl Hellen Res Fdn, Inst Theoret & Phys Chem, GR-11635 Athens, Greece

来源：

JOURNAL OF LUMINESCENCE | 2005年 / 112卷 / 1-4期

关键词：

organic/inorganic semiconductor; quantum wells;

D O I：

10.1016/j.jlumin.2004.09.081

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We examined the optical properties of two-dimensional semiconductor (CH3C6H4CH2NH3)(2)PbBr4 single crystals. Clear and sharp structures, originated in dipole allowed excitons and triplet excitons, were observed in both absorption and emission spectra. In the highly excited emission spectra, biexciton emission appeared with the increase of excitation intensity. An extremely large biexciton binding energy of 40 meV was estimated. We could observe both induced absorption and emission due to biexciton formation for the first time. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：54 / 57

页数：4

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