Quasi-zero-dimensional excitons in quantum well structures of CdTe/CdMnTe

被引：6

作者：

Godlewski, M

Narkowicz, R

Wojtowicz, T

Bergman, JP

Monemar, B

机构：

[1] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

[2] Inst Semicond Phys, LT-2600 Vilnius, Lithuania

[3] Linkoping Univ, Dept Phys & Measurement Technol, S-58183 Linkoping, Sweden

来源：

JOURNAL OF CRYSTAL GROWTH | 2000年 / 214卷

关键词：

CdTe quantum wells; localised excitons; quantum dots;

D O I：

10.1016/S0022-0248(00)00121-4

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

in this work we discuss properties of excitons in quantum well structures of CdTe/CdMnTe. We analyse exciton-phonon interaction of strongly localised excitons by studying the temperature dependence of photoluminescence (PL) (width and spectral position of PL lines) and PL dynamics. Evidence of a slow exciton migration/tunnelling among localised sites is presented and its effect on the luminescence spectrum and exciton dynamics is discussed. We show that strong localisation of excitons, observed at low temperatures, results in quasi-zero-dimensional nature of excitons. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

收藏

页码：420 / 423

页数：4

相关论文

共 10 条

[1] RADIATIVE LIFETIMES OF EXCITONS IN QUANTUM-WELLS - LOCALIZATION AND PHASE-COHERENCE EFFECTS [J].

CITRIN, DS .

PHYSICAL REVIEW B, 1993, 47 (07) :3832-3841

[2]

GOBEL EO, 1995, MATER SCI FORUM, V182-, P519, DOI 10.4028/www.scientific.net/MSF.182-184.519

[3]

Godlewski M., 1995, Lithuanian Physics Journal, V35, P563

[4] HETEROINTERFACES IN QUANTUM-WELLS AND EPITAXIAL-GROWTH PROCESSES - EVALUATION BY LUMINESCENCE TECHNIQUES [J].

HERMAN, MA ;

BIMBERG, D ;

CHRISTEN, J .

JOURNAL OF APPLIED PHYSICS, 1991, 70 (02) :R1-R52

[5] Photoluminescence study of CdTe ZnTe self-assembled quantum dots [J].

Karczewski, G ;

Mackowski, S ;

Kutrowski, M ;

Wojtowicz, T ;

Kossut, J .

APPLIED PHYSICS LETTERS, 1999, 74 (20) :3011-3013

[6] Zero-dimensional excitons in (Zn,Cd)Se quantum structures [J].

Lowisch, M ;

Rabe, M ;

Stegemann, B ;

Henneberger, F ;

Grundmann, M ;

Turck, V ;

Bimberg, D .

PHYSICAL REVIEW B, 1996, 54 (16) :11074-11077

[7] LUMINESCENCE STUDIES OF OPTICALLY PUMPED QUANTUM WELLS IN GAAS-ALXGA1-XAS MULTILAYER STRUCTURES [J].

MILLER, RC ;

KLEINMAN, DA ;

NORDLAND, WA ;

GOSSARD, AC .

PHYSICAL REVIEW B, 1980, 22 (02) :863-871

[8] GIANT-OSCILLATOR-STRENGTH EFFECT ON EXCITONIC OPTICAL NONLINEARITIES DUE TO LOCALIZATION [J].

TAKAGAHARA, T ;

HANAMURA, E .

PHYSICAL REVIEW LETTERS, 1986, 56 (23) :2533-2536

[9] RELAXATION OF EXCITONS IN THIN QUANTUM-WELLS [J].

ZACHAU, M ;

KASH, JA ;

MASSELINK, WT .

PHYSICAL REVIEW B, 1991, 44 (15) :8403-8406

[10] Negative characteristic temperature of InGaAs quantum dot injection laser [J].

Zhukov, AE ;

Ustinov, VM ;

Egorov, AY ;

Kovsh, AR ;

Tsatsulnikov, AF ;

Ledentsov, NN ;

Zaitsev, SV ;

Gordeev, NY ;

Kopev, PS ;

Alferov, ZI .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 1997, 36 (6B) :4216-4218