Band gap variation of size- and shape-controlled colloidal CdSe quantum rods

被引:551
作者
Li, LS
Hu, JT
Yang, WD
Alivisatos, AP [1 ]
机构
[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA
[2] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA
关键词
D O I
10.1021/nl015559r
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We report the band gaps of rodlike CdSe quantum dots with diameter varying from 3.0 to 6.5 nm and length from 7.5 to 40 nm. A qualitative explanation for the dependence of band gap on width and length is presented.
引用
收藏
页码:349 / 351
页数:3
相关论文
共 18 条
  • [1] Semiconductor clusters, nanocrystals, and quantum dots
    Alivisatos, AP
    [J]. SCIENCE, 1996, 271 (5251) : 933 - 937
  • [2] QUANTUM CRYSTALLITES AND NONLINEAR OPTICS
    BRUS, L
    [J]. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1991, 53 (06): : 465 - 474
  • [4] LUMINESCENCE POLARIZATION OF CDSE MICROCRYSTALS
    EFROS, AL
    [J]. PHYSICAL REVIEW B, 1992, 46 (12): : 7448 - 7458
  • [5] EFROS AL, 1982, SOV PHYS SEMICOND+, V16, P772
  • [6] Band-edge exciton in quantum dots of semiconductors with a degenerate valence band: Dark and bright exciton states
    Efros, AL
    Rosen, M
    Kuno, M
    Nirmal, M
    Norris, DJ
    Bawendi, M
    [J]. PHYSICAL REVIEW B, 1996, 54 (07): : 4843 - 4856
  • [7] The electronic structure of semiconductor nanocrystals
    Efros, AL
    Rosen, M
    [J]. ANNUAL REVIEW OF MATERIALS SCIENCE, 2000, 30 : 475 - 521
  • [8] ABSORPTION AND INTENSITY-DEPENDENT PHOTOLUMINESCENCE MEASUREMENTS ON CDSE QUANTUM DOTS - ASSIGNMENT OF THE 1ST ELECTRONIC-TRANSITIONS
    EKIMOV, AI
    HACHE, F
    SCHANNEKLEIN, MC
    RICARD, D
    FLYTZANIS, C
    KUDRYAVTSEV, IA
    YAZEVA, TV
    RODINA, AV
    EFROS, AL
    [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1993, 10 (01) : 100 - 107
  • [9] Linearly polarized emission from colloidal semiconductor quantum rods
    Hu, JT
    Li, LS
    Yang, WD
    Manna, L
    Wang, LW
    Alivisatos, AP
    [J]. SCIENCE, 2001, 292 (5524) : 2060 - 2063
  • [10] Exciton fine structure in CdSe nanoclusters
    Leung, K
    Pokrant, S
    Whaley, KB
    [J]. PHYSICAL REVIEW B, 1998, 57 (19): : 12291 - 12301