Temperature-dependent line widths of single excitons and biexcitons

被引：31

作者：

Gindele, F ^{[1
]}

Hild, K ^{[1
]}

Langbein, W ^{[1
]}

Woggon, U ^{[1
]}

机构：

[1] Univ Dortmund, Inst Phys, D-44221 Dortmund, Germany

来源：

JOURNAL OF LUMINESCENCE | 2000年 / 87-9卷

关键词：

single exciton; biexciton; phonon coupling;

D O I：

10.1016/S0022-2313(99)00409-3

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The coupling of single zero-dimensional excitons and biexcitons to acoustic and optical phonons is studied in epitaxially grown Zn1-xCdxSe/ZnSe quantum structures. From the temperature-dependent line width of the exciton photoluminescence (PL) an enhanced coupling to acoustic phonons is found which we explain by the quantum confinement. The LO-phonon coupling is reduced compared to CdSe bulk material. The temperature dependence of the line width of the biexciton PL is similar, indicating a similar coupling strength of the exciton and the exciton-biexciton transition to the crystal lattice. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：381 / 383

页数：3

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