Electron-electron interaction effects on the optical excitations of semiconducting single-walled carbon nanotubes

被引:277
作者
Zhao, HB [1 ]
Mazumdar, S [1 ]
机构
[1] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
关键词
D O I
10.1103/PhysRevLett.93.157402
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report correlated-electron calculations of optically excited states in ten semiconducting single-walled carbon nanotubes with a wide range of diameters. Optical excitation occurs to excitons whose binding energies decrease with increasing nanotube diameter, and are smaller than the binding energy of an isolated strand of poly-(paraphenylene vinylene). The ratio of the energy of the second optical exciton polarized along the nanotube axis to that of the lowest exciton is smaller than the value predicted within single-particle theory. The experimentally observed weak photoluminescence is an intrinsic feature of semiconducting nanotubes.
引用
收藏
页码:157402 / 1
页数:4
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共 38 条
  • [1] AHARONOV-BOHM EFFECT IN CARBON NANOTUBES
    AJIKI, H
    ANDO, T
    [J]. PHYSICA B, 1994, 201 : 349 - 352
  • [2] Excitons in carbon nanotubes
    Ando, T
    [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1997, 66 (04) : 1066 - 1073
  • [3] [Anonymous], EXCITED STATES
  • [4] [Anonymous], ORGANIC ELECT MAT CO
  • [5] Structure-assigned optical spectra of single-walled carbon nanotubes
    Bachilo, SM
    Strano, MS
    Kittrell, C
    Hauge, RH
    Smalley, RE
    Weisman, RB
    [J]. SCIENCE, 2002, 298 (5602) : 2361 - 2366
  • [6] Coulomb interactions and linear, nonlinear, and triplet absorption in poly(para-phenylenevinylene)
    Chandross, M
    Mazumdar, S
    [J]. PHYSICAL REVIEW B, 1997, 55 (03): : 1497 - 1504
  • [7] Optical absorption in the substituted phenylene-based conjugated polymers: Theory and experiment
    Chandross, M
    Mazumdar, S
    Liess, M
    Lane, PA
    Vardeny, ZV
    Hamaguchi, M
    Yoshino, K
    [J]. PHYSICAL REVIEW B, 1997, 55 (03): : 1486 - 1496
  • [8] Diagrammatic exciton-basis valence-bond theory of linear polyenes
    Chandross, M
    Shimoi, Y
    Mazumdar, S
    [J]. PHYSICAL REVIEW B, 1999, 59 (07) : 4822 - 4838
  • [9] EXCITONS IN POLY(PARA-PHENYLENEVINYLENE)
    CHANDROSS, M
    MAZUMDAR, S
    JEGLINSKI, S
    WEI, X
    VARDENY, ZV
    KWOCK, EW
    MILLER, TM
    [J]. PHYSICAL REVIEW B, 1994, 50 (19): : 14702 - 14705
  • [10] Excitons in carbon nanotubes:: An ab initio symmetry-based approach -: art. no. 196401
    Chang, E
    Bussi, G
    Ruini, A
    Molinari, E
    [J]. PHYSICAL REVIEW LETTERS, 2004, 92 (19) : 196401 - 1