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P掺杂硅纳米管电子结构与光学性质的研究

余志强 张昌华 郎建勋

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P掺杂硅纳米管电子结构与光学性质的研究

余志强, 张昌华, 郎建勋

The electronic structure and optical properties of P-doped silicon nanotubes

Yu Zhi-Qiang, Zhang Chang-Hua, Lang Jian-Xun
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  • 采用基于密度泛函理论的第一性原理计算,研究了P掺杂对单壁扶手型硅纳米管电子结构和光学性质的影响. 结果表明:经过P掺杂,单壁扶手型硅纳米管的能带结构从间接带隙变为直接带隙,其价带顶主要由Si-3p态电子构成,导带底主要由Si-3p态电子和Si-3s态电子共同决定;同时通过P掺杂,使单壁扶手型硅纳米管的禁带宽度变窄,导电性增强,吸收光谱产生红移. 研究结果为硅纳米管在光电器件方面的应用提供了理论基础.
    We perform first-principles calculations in the framework of density-functional theory to determine the effects of P doping on the electronic structure and optical properties of single-walled armchair silicon nanotubes. The calculated results indicate that the band-gap of single-walled armchair silicon nanotubes changes from indirect to direct one, with the P element doped. The top of valence band is determined mainly by the Si-3p electrons, and the bottom of conduction band is occupied by the Si-3p electrons and Si-3s electrons. Moreover, the band gap of single-walled armchair silicon nanotubes decreases and the optical absorption is red-shifted, with the P element doped. The results provide useful theoretical guidance for the applications of silicon nanotubes in optical detectors.
    • 基金项目: 国家自然科学基金(批准号:61263030)资助的课题.
    • Funds: Projected supported by the National Natural Science Foundation of China (Grant No. 61263030).
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    Bai Z G, Yu D P, Wang J J, Zhou Y H, Qian W, Fu J S, Feng S Q, Xu J, You L P 2000 Mater. Sci. Eng. B 72 117

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    Hu S F, Wong W Z, Liu S S, Wu Y C, Sung C L, Huang T Y 2003 Solid State Commun. 125 351

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    Wang Y L, Xu W, Zhou Y, Chu L Z, Fu G S 2007 Laser Part. Beams 25 9

    [5]

    Liang W H, Ding X C, Chu L Z, Deng Z C, Guo J X, Wu Z H, Wang Y L 2010 Acta Phys. Sin. 59 8071 (in Chinese) [梁伟华, 丁学成, 褚立志, 邓泽超, 郭建新, 吴转花, 王英龙 2010 物理学报 59 8071]

    [6]

    Tang Y H, Pei L Z, Chen Y W, Guo C 2005 Phys. Rev. Lett. 95 116102

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    Ma D D D, Lee C S, Au F C K, Tong S Y, Lee S T 2003 Science 299 1874

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    Sony Y, Andrew L S, Sony J 2007 Nano Lett. 7 965

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    He T, Zhao M W, Li W F, Lin X H, Zhang X J, Liu X D, Xia Y Y, Mei L M 2008 Nanotechnology 19 205707

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    Segall M D, Lindan P, Probert M J, Pickard C J, Hasnip P J, Clark S J, Payne M C 2002 J. Phys. Condens. Matter 14 2717

    [11]

    Yu Z Q 2012 Acta Phys. Sin. 61 217102 (in Chinese) [余志强 2012 物理学报 61 217102]

    [12]

    Clark S J, Segall M D, Pickard C J, Hasnip P J, Probert M J, Refson K, Payne M C 2005 Z. Kristallogr 220 567

    [13]

    Perdew J, Burke K, Ernzerhof M 1996 Phys. Rev. Lett. 77 3865

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    Broyden C G 1970 J. Inst. Math. Appl. 6 222

    [15]

    Huang K, Han R Y 1988 Solid-State Physics (Beijing: Higher Education Press) p438 (in Chinese) [黄昆 1988 固体物理学 (北京: 高等教育出版社) 第438页]

    [16]

    Shen X C 1992 The Spectrum and Optical Property of Semiconductor (Beijing: Science Press) p76 (in Chinese) [沈学础 1992 半导体光谱和光学性质 (北京: 科学出版社) 第76 页]

    [17]

    Liu W J, Pang L H, Lin X, Gao R X, Song X W 2013 Chin. Phys. B 22 034204

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    Shen X W, Yuan J H, Sang X Z, Yu C X, Rao L, Xin X J, Xia M, Han Y, Xia C M, Hou L T 2012 Chin. Phys. B 21 074209

  • [1]

    Cui Y, Wei Q, Park H, Lieber C M 2001 Science 293 1289

    [2]

    Bai Z G, Yu D P, Wang J J, Zhou Y H, Qian W, Fu J S, Feng S Q, Xu J, You L P 2000 Mater. Sci. Eng. B 72 117

    [3]

    Hu S F, Wong W Z, Liu S S, Wu Y C, Sung C L, Huang T Y 2003 Solid State Commun. 125 351

    [4]

    Wang Y L, Xu W, Zhou Y, Chu L Z, Fu G S 2007 Laser Part. Beams 25 9

    [5]

    Liang W H, Ding X C, Chu L Z, Deng Z C, Guo J X, Wu Z H, Wang Y L 2010 Acta Phys. Sin. 59 8071 (in Chinese) [梁伟华, 丁学成, 褚立志, 邓泽超, 郭建新, 吴转花, 王英龙 2010 物理学报 59 8071]

    [6]

    Tang Y H, Pei L Z, Chen Y W, Guo C 2005 Phys. Rev. Lett. 95 116102

    [7]

    Ma D D D, Lee C S, Au F C K, Tong S Y, Lee S T 2003 Science 299 1874

    [8]

    Sony Y, Andrew L S, Sony J 2007 Nano Lett. 7 965

    [9]

    He T, Zhao M W, Li W F, Lin X H, Zhang X J, Liu X D, Xia Y Y, Mei L M 2008 Nanotechnology 19 205707

    [10]

    Segall M D, Lindan P, Probert M J, Pickard C J, Hasnip P J, Clark S J, Payne M C 2002 J. Phys. Condens. Matter 14 2717

    [11]

    Yu Z Q 2012 Acta Phys. Sin. 61 217102 (in Chinese) [余志强 2012 物理学报 61 217102]

    [12]

    Clark S J, Segall M D, Pickard C J, Hasnip P J, Probert M J, Refson K, Payne M C 2005 Z. Kristallogr 220 567

    [13]

    Perdew J, Burke K, Ernzerhof M 1996 Phys. Rev. Lett. 77 3865

    [14]

    Broyden C G 1970 J. Inst. Math. Appl. 6 222

    [15]

    Huang K, Han R Y 1988 Solid-State Physics (Beijing: Higher Education Press) p438 (in Chinese) [黄昆 1988 固体物理学 (北京: 高等教育出版社) 第438页]

    [16]

    Shen X C 1992 The Spectrum and Optical Property of Semiconductor (Beijing: Science Press) p76 (in Chinese) [沈学础 1992 半导体光谱和光学性质 (北京: 科学出版社) 第76 页]

    [17]

    Liu W J, Pang L H, Lin X, Gao R X, Song X W 2013 Chin. Phys. B 22 034204

    [18]

    Shen X W, Yuan J H, Sang X Z, Yu C X, Rao L, Xin X J, Xia M, Han Y, Xia C M, Hou L T 2012 Chin. Phys. B 21 074209

计量
  • 文章访问数:  6130
  • PDF下载量:  925
  • 被引次数: 0
出版历程
  • 收稿日期:  2013-11-20
  • 修回日期:  2013-12-13
  • 刊出日期:  2014-03-05

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