Breaking the phonon bottleneck for holes in semiconductor quantum dots

被引：191
|
作者：
Cooney, Ryan R. [1 ]
Sewall, Samuel L. [1 ]
Anderson, Kevin E. H. [1 ]
Dias, Eva A. [1 ]
Kambhampati, Patanjali [1 ]
机构：
[1] McGill Univ, Dept Chem, Montreal, PQ H3A 2K6, Canada
来源：
PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 17期
关键词：
D O I：
10.1103/PhysRevLett.98.177403
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Size dependent hole dynamics are measured in colloidal CdSe quantum dots for a specific state-to-state excitonic transition. These experiments show that the hole energy loss rate increases for smaller quantum dots, contradicting known relaxation mechanisms for holes. These experiments reveal a new mechanism for hole relaxation in colloidal quantum dots which circumvents the expected phonon bottleneck for holes. The data are consistent with a nonadiabatic surface channel as the dominant pathway for hole relaxation in colloidal semiconductor quantum dots.
引用
收藏
页数：4
相关论文
共 50 条
  • [31] Carrier relaxation with LO phonon decay in semiconductor quantum dots
    Levetas, SA
    Godfrey, MJ
    Dawson, P
    PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS, PTS I AND II, 2001, 87 : 1333 - 1334
  • [32] Exciton-phonon interaction in cylindrical semiconductor quantum dots
    Cheche, Tiberius O.
    Barna, Emil
    Stamatin, Ioan
    PHYSICA B-CONDENSED MATTER, 2011, 406 (24) : 4590 - 4595
  • [33] EXCITON OPTICAL-PHONON COUPLINGS IN SEMICONDUCTOR QUANTUM DOTS
    CHEN, YM
    HUANG, SH
    YU, JQ
    CHEN, YX
    JOURNAL OF LUMINESCENCE, 1994, 60-1 : 786 - 787
  • [34] Origin of the doping bottleneck in semiconductor quantum dots: A first-principles study
    Li, Jingbo
    Wei, Su-Huai
    Li, Shu-Shen
    Xia, Jian-Bai
    PHYSICAL REVIEW B, 2008, 77 (11)
  • [35] Lifetime of confined LO phonons in quantum dots and its impact on phonon bottleneck issue
    Li, XQ
    Nakayama, H
    Arakawa, Y
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1999, 38 (1B): : 473 - 476
  • [36] Direct observation of phonon relaxation bottleneck in InAs quantum dots of high-uniformity
    Kitamura, T
    Ohtsubo, R
    Murayama, M
    Kuroda, T
    Yamaguchi, K
    Tackeuchi, A
    2ND INTERNATIONAL CONFERENCE ON SEMICONDUCTOR QUANTUM DOTS, 2003, : 1165 - 1168
  • [37] Lifetime of confined LO phonons in quantum dots and its impact on phonon bottleneck issue
    Univ of Tokyo, Tokyo, Japan
    Jpn J Appl Phys Part 1 Regul Pap Short Note Rev Pap, 1 B (473-476):
  • [38] Hole intraband relaxation in strongly confined quantum dots: Revisiting the "phonon bottleneck" problem
    Xu, S
    Mikhailovsky, AA
    Hollingsworth, JA
    Klimov, VI
    PHYSICAL REVIEW B, 2002, 65 (04) : 1 - 5
  • [39] Acoustic phonon bottleneck in quantum dots: role of deformation variation of electron effective mass
    Pipa, VI
    Mitin, VV
    Stroscio, M
    SOLID STATE COMMUNICATIONS, 2001, 117 (12) : 713 - 717
  • [40] Phonon-induced damping of Rabi oscillations in semiconductor quantum dots
    Förstner, J
    Weber, C
    Danckwerts, J
    Knorr, A
    PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 2003, 238 (03): : 419 - 422
12345