Mn2+ intra-shell recombination in bulk and quantum dots of II-VI compounds

被引：23
|
作者：
Godlewski, M
Ivanov, VY
Bergman, PJ
Monemar, B
Golacki, Z
Karczewski, G
机构：
[1] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland
[2] Linkoping Univ, Dept Phys & Measurement Technol, S-58183 Linkoping, Sweden
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2002年 / 341卷 / 1-2期
关键词：
luminescence; optically detected magnetic resonance; ZnMnS; CdMnTe; spin interactions;
D O I：
10.1016/S0925-8388(02)00088-9
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Origin of a fast component of the photoluminescence (PL) decay of Mn2+ intra-shell T-4(1) --> (6)A(1) transition in bulk and quantum dot structures is discussed based on the results of PL, PL kinetics and optically detected magnetic resonance experiments. It is demonstrated that a fast component of the PL decay, reported previously for quantum dot structure and related to quantum confinement effects, is also observed in bulk samples and is very much enhanced upon generation of free carriers. The appearance of this fast component of the PL decay is related to a very efficient spin cross-relaxation between localized spins of Mn ions and spins of free carriers. (C) 2002 Elsevier Science B.V. All rights reserved.
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页码：8 / 11
页数：4
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