Infoscience

Journal article

Radiative lifetime of negative trions in GaAs and CdTe quantum wells

We have studied experimentally the radiative lifetimes of negatively charged excitons (X-) and neutral excitons (X) in GaAs and CdTe quantum wells. Despite the different optical properties (e.g. trion binding energies) and the different quantum well structures of the studied samples, we find quite similar X- lifetimes in the range of 45 to 60 ps. On the other side, the X lifetimes are very different and influenced by the material. For relatively low electron concentrations, the X- lifetime is found to be constant with increasing temperature in a given range. This time behaviour of X- suggests that X- is localised for low electron concentrations in the CdTe QW.

    Keywords: EXCITON DYNAMICS

    Note:

    Swiss Fed Inst Technol, EPFL, IMO, Dept Phys, CH-1015 Lausanne, Switzerland. Univ Metz, Inst Phys & Elect, F-57078 Metz 3, France. Ciulin, V, Swiss Fed Inst Technol, EPFL, IMO, Dept Phys, CH-1015 Lausanne, Switzerland.

    ISI Document Delivery No.: 303TG

    Times Cited: 1

    Cited Reference Count: 13

    Cited References:

    ANDREANI LC, 1994, CONFINED ELECT PHOTO

    CITRIN DS, 1993, COMMENTS CONDENS MAT, V16, P263

    CIULIN V, IN PRESS P NATO WORK

    DAUBIGNE YM, 1996, PHYS REV B, V54, P14003

    FINKELSTEIN G, 1995, PHYS REV LETT, V74, P976

    FINKELSTEIN G, 1998, PHYS REV B, V58, P12637

    GLASBERG S, 1999, PHYS REV B, V59, P10425

    KHENG K, 1993, PHYS REV LETT, V71, P1752

    KHENG K, 1995, ANN PHYS-PARIS S2, V20, P229

    RON A, 1996, SOLID STATE COMMUN, V97, P741

    SHIELDS AJ, 1995, PHYS REV B, V51, P18049

    STEBE B, 1997, PHYS REV B, V56, P12454

    VINATTIERI A, 1994, PHYS REV B, V50, P10868

    Reference

    Record created on 2007-08-31, modified on 2016-08-08

Fulltext

  • There is no available fulltext. Please contact the lab or the authors.

Related material