RELAXATION OF EXCITONS IN COHERENTLY STRAINED CDTE/ZNTE QUANTUM-WELLS

被引：42

作者：

COLLET, JH

KALT, H

DANG, LS

CIBERT, J

SAMINADAYAR, K

TATARENKO, S

机构：

[1] UNIV J FOURIER,SPECTROMETRIE PHYS LAB,F-38402 ST MARTIN DHERES,FRANCE

[2] UNIV PAUL SABATIER,PHYS SOLIDES LAB,F-31077 TOULOUSE,FRANCE

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.43.6843

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The relaxation kinetics of photogenerated excitons have been investigated in coherently strained CdTe/ZnTe quantum wells. Picosecond time-resolved luminescence spectra clearly display several replicas of the excitation pump due to the relaxation of photogenerated excitons in the CdTe well assisted by the emission of optical phonons. The luminescence replicas merge into a single broad-band at a time typically larger than 300 ps, revealing spatial diffusion of excitons in the well. We study the gradual localization of photogenerated excitons from the decay of the hot luminescence.

引用

页码：6843 / 6846

页数：4

共 12 条

[1] CRITICAL THICKNESS IN EPITAXIAL CDTE/ZNTE
CIBERT, J
GOBIL, Y
DANG, LS
TATARENKO, S
FEUILLET, G
JOUNEAU, PH
SAMINADAYAR, K
[J]. APPLIED PHYSICS LETTERS, 1990, 56 (03) : 292 - 294
[2] FLUORESCENCE LINE NARROWING, LOCALIZED EXCITON-STATES, AND SPECTRAL DIFFUSION IN THE MIXED SEMICONDUCTOR CDSXSE1-X
COHEN, E
STURGE, MD
[J]. PHYSICAL REVIEW B, 1982, 25 (06) : 3828 - 3840
[3] TRANSFER OF EXCITONS BOUND TO NITROGEN IN GAAS1-XPX-N
COLLET, JH
KASH, JA
WOLFORD, DJ
THOMPSON, J
[J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1983, 16 (07): : 1283 - 1290
[4] EXCITON DYNAMICS IN GAAS QUANTUM-WELLS
DAMEN, TC
SHAH, J
OBERLI, DY
CHEMLA, DS
CUNNINGHAM, JE
KUO, JM
[J]. JOURNAL OF LUMINESCENCE, 1990, 45 (1-6) : 181 - 185
[5] DYNAMICS OF EXCITON TRANSFER BETWEEN MONOLAYER-FLAT ISLANDS IN SINGLE QUANTUM-WELLS
DEVEAUD, B
DAMEN, TC
SHAH, J
TU, CW
[J]. APPLIED PHYSICS LETTERS, 1987, 51 (11) : 828 - 830
[6] QUASI-2-DIMENSIONAL EXCITONS IN A STRONGLY LOCALIZED REGIME IN CDTE-ZNTE SUPERLATTICES
HEFETZ, Y
LEE, D
NURMIKKO, AV
SIVANANTHAN, S
CHU, X
FAURIE, JP
[J]. PHYSICAL REVIEW B, 1986, 34 (06): : 4423 - 4425
[7] SUBBAND STRUCTURE OF STRAINED-LAYER CDTE/ZNTE SUPERLATTICES - A REEXAMINATION
MATHIEU, H
CHATT, A
ALLEGRE, J
FAURIE, JP
[J]. PHYSICAL REVIEW B, 1990, 41 (09): : 6082 - 6085
[8] RESONANCE RAMAN-SCATTERING IN CDTE-ZNTE SUPERLATTICES
MENENDEZ, J
PINCZUK, A
VALLADARES, JP
FELDMAN, RD
AUSTIN, RF
[J]. APPLIED PHYSICS LETTERS, 1987, 50 (16) : 1101 - 1103
[9] THEORY OF PHOTOLUMINESCENCE LINE-SHAPE DUE TO INTERFACIAL QUALITY IN QUANTUM WELL STRUCTURES
SINGH, J
BAJAJ, KK
CHAUDHURI, S
[J]. APPLIED PHYSICS LETTERS, 1984, 44 (08) : 805 - 807
[10] DYNAMICS OF FREE EXCITON LUMINESCENCE IN CDXZN1-XTE/ZNTE QUANTUM-WELLS
STANLEY, RP
HEGARTY, J
FISCHER, R
FELDMANN, J
GOBEL, EO
FELDMAN, RD
AUSTIN, RF
[J]. JOURNAL OF CRYSTAL GROWTH, 1990, 101 (1-4) : 683 - 686

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