Luminescence, energy transfer and anti-Stokes PL in wide band-gap semimagnetic nanostructures

被引：8

作者：

Heimbrodt, W

Falk, H

Klar, PJ

机构：

[1] Univ Marburg, Dept Phys, D-35032 Marburg, Germany

[2] Univ Marburg, Ctr Mat Sci, D-35032 Marburg, Germany

来源：

JOURNAL OF LUMINESCENCE | 2000年 / 87-9卷

关键词：

dilute magnetic semiconductors; line narrowing; energy transfer; anti-Stokes PL;

D O I：

10.1016/S0022-2313(99)00367-1

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A strong enhancement of exciton emission accompanied by a line narrowing has been found for (Zn,Cd,Mn)Se/ZnSe QW and QW-disc structures with increasing magnetic field. The line narrowing is caused by a field-induced smoothing of the compositional disorder potential on a microscopic and mesoscopic scale. whereas the intensity increases due to the spin dependence of the energy transfer into the internal Mn2+(3d(5)) states. In specially designed double QW structures a huge anti-Stokes PL has been observed. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：344 / 346

页数：3

共 6 条

[1] COMPOSITIONAL DISORDER-INDUCED BROADENING FOR FREE EXCITONS IN II-VI SEMICONDUCTING MIXED-CRYSTALS [J].