QUASI-2-DIMENSIONAL EXCITONS IN (ZN,CD)SE/ZNSE QUANTUM-WELLS - REDUCED EXCITON LO-PHONON COUPLING DUE TO CONFINEMENT EFFECTS

被引:192
作者
PELEKANOS, NT
DING, J
HAGEROTT, M
NURMIKKO, AV
LUO, H
SAMARTH, N
FURDYNA, JK
机构
[1] BROWN UNIV,DEPT PHYS,PROVIDENCE,RI 02912
[2] UNIV NOTRE DAME,DEPT PHYS,NOTRE DAME,IN 46556
来源
PHYSICAL REVIEW B | 1992年 / 45卷 / 11期
关键词
D O I
10.1103/PhysRevB.45.6037
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Quasi-two-dimensional (2D) excitons in (Zn,Cd)Se/ZnSe quantum wells were investigated. We observed a confinement-induced enhancement of the exciton binding energy to a value greater than the longitudinal-optical (LO) -phonon energy. This unusual condition results in an effective reduction of the exciton-LO-phonon coupling. As a consequence, excitonic absorption features in this quantum-well system are well preserved to room temperature and beyond.
引用
收藏
页码:6037 / 6042
页数:6
相关论文
共 27 条
  • [11] INVESTIGATION OF BAND MASSES AND G VALUES OF ZNSE BY 2-PHOTON MAGNETOABSORPTION
    HOLSCHER, HW
    NOTHE, A
    UIHLEIN, C
    [J]. PHYSICAL REVIEW B, 1985, 31 (04): : 2379 - 2387
  • [12] A THEORY OF EDGE-EMISSION PHENOMENA IN CDS, ZNS AND ZNO
    HOPFIELD, JJ
    [J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1959, 10 (2-3) : 110 - 119
  • [13] BLUE-GREEN INJECTION-LASER DIODES IN (ZN,CD)SE/ZNSE QUANTUM-WELLS
    JEON, H
    DING, J
    PATTERSON, W
    NURMIKKO, AV
    XIE, W
    GRILLO, DC
    KOBAYASHI, M
    GUNSHOR, RL
    [J]. APPLIED PHYSICS LETTERS, 1991, 59 (27) : 3619 - 3621
  • [14] EXCITONIC AND NONLINEAR-OPTICAL PROPERTIES OF DIELECTRIC QUANTUM-WELL STRUCTURES
    KUMAGAI, M
    TAKAGAHARA, T
    [J]. PHYSICAL REVIEW B, 1989, 40 (18): : 12359 - 12381
  • [15] LUMINESCENCE LINEWIDTHS OF EXCITONS IN GAAS QUANTUM-WELLS BELOW 150-K
    LEE, J
    KOTELES, ES
    VASSELL, MO
    [J]. PHYSICAL REVIEW B, 1986, 33 (08): : 5512 - 5516
  • [16] DIAMAGNETISM AS A PROBE OF EXCITON LOCALIZATION IN QUANTUM WELLS
    NASH, KJ
    SKOLNICK, MS
    CLAXTON, PA
    ROBERTS, JS
    [J]. PHYSICAL REVIEW B, 1989, 39 (15) : 10943 - 10954
  • [17] PHONON SIDEBAND OF PHOTOLUMINESCENCE AS A PROBE OF EXCITON-STATES IN A QUANTUM WELL
    NASH, KJ
    SKOLNICK, MS
    CLAXTON, PA
    ROBERTS, JS
    [J]. PHYSICAL REVIEW B, 1989, 39 (08): : 5558 - 5561
  • [18] PELEKANOS N, UNPUB
  • [19] TEMPERATURE-DEPENDENT EXCITON LINEWIDTHS IN SEMICONDUCTORS
    RUDIN, S
    REINECKE, TL
    SEGALL, B
    [J]. PHYSICAL REVIEW B, 1990, 42 (17): : 11218 - 11231
  • [20] MOLECULAR-BEAM EPITAXY OF ZN1-XCDXSE EPILAYERS AND ZNSE/ZN1-XCDXSE SUPERLATTICES
    SAMARTH, N
    LUO, H
    FURDYNA, JK
    ALONSO, RG
    LEE, YR
    RAMDAS, AK
    QADRI, SB
    OTSUKA, N
    [J]. APPLIED PHYSICS LETTERS, 1990, 56 (12) : 1163 - 1165