LONG INTRINSIC RADIATIVE LIFETIMES OF EXCITONS IN QUANTUM WIRES

被引：178
|
作者：
CITRIN, DS
机构：
[1] Max-Planck-Institut für Festkörperforschung, W-7000 Stuttgart 80
来源：
PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 23期
关键词：
D O I：
10.1103/PhysRevLett.69.3393
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Calculations of exciton radiative lifetimes in quantum wires free of defects are presented. Only excitons near zero wave number can spontaneously undergo radiative decay while conserving energy and momentum. The lifetime of the lowest-energy exciton in 100-angstrom-diam GaAs quantum wires, tau(spon) = 150 ps, is an order of magnitude longer than in quantum wells. This is due to the finite spatial coherence in the lateral direction. Thermalization effects lead to an effective lifetime of tau(T) = 140 square-root T ps K-1/2.
引用
收藏
页码：3393 / 3396
页数：4
相关论文
共 50 条
  • [41] Dielectric enhancement of excitons in semiconducting quantum wires
    E. A. Mulyarov
    S. G. Tikhodeev
    Journal of Experimental and Theoretical Physics, 1997, 84 : 151 - 155
  • [42] Dielectric enhancement of excitons in semiconducting quantum wires
    Mulyarov, EA
    Tikhodeev, SG
    JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 1997, 84 (01) : 151 - 155
  • [43] Excitons in T-shaped quantum wires
    Szymanska, MH
    Littlewood, PB
    Needs, RJ
    PHYSICAL REVIEW B, 2001, 63 (20):
  • [44] Excitons in diluted magnetic semiconductor quantum wires
    Kyrychenko, FV
    Kossut, J
    PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2001, 10 (1-3) : 378 - 382
  • [45] Excitons in T-shaped quantum wires
    Glutsch, S
    Bechstedt, F
    Wegscheider, W
    Schedelbeck, G
    PHYSICAL REVIEW B, 1997, 56 (07): : 4108 - 4114
  • [46] Long-Lived 1D Excitons in Bright CdTe Quantum Wires
    Sanderson, William M.
    Wang, Fudong
    Buhro, William E.
    Loomis, Richard A.
    JOURNAL OF PHYSICAL CHEMISTRY C, 2019, 123 (05) : 3144 - 3151
  • [47] Spectroscopic exploration of the quantum nature of excitons in semiconductor quantum wires
    Loomis, Richard A.
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2014, 247
  • [48] Tuning radiative lifetimes in semiconductor quantum dots
    Bhattacharyya, Biswajit
    Mukherjee, Arpita
    Mahadevu, Rekha
    Pandey, Anshu
    JOURNAL OF CHEMICAL PHYSICS, 2021, 154 (07)
  • [49] Radiative lifetimes of spatially indirect excitons in type-II GaSb/GaAs self-assembled quantum dots
    Suzuki, K
    Minsky, MS
    Fleischer, SB
    Hogg, RA
    Kako, S
    Hu, EL
    Bowers, JE
    Arakawa, Y
    COMPOUND SEMICONDUCTORS 1998, 1999, (162): : 475 - 480
  • [50] ULTRAFAST CARRIER CAPTURE AND LONG RECOMBINATION LIFETIMES IN GAAS QUANTUM WIRES GROWN ON NONPLANAR SUBSTRATES
    CHRISTEN, J
    GRUNDMANN, M
    KAPON, E
    COLAS, E
    HWANG, DM
    BIMBERG, D
    APPLIED PHYSICS LETTERS, 1992, 61 (01) : 67 - 69
12345