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C_(40)富勒烯分子的电子结构与传输特性研究 被引量:2

Electronic structure and electronic conductance of C_(40) fullerene
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摘要 本文采用密度泛涵理论对富勒烯C_(40)分子进行了结构优化,得到了稳定构型,然后构建了以金原子面为电极的电子输运模型.使用非平衡格林函数方法对构建的电子输运模型进行了电子输运性质的计算,得到了电子透射谱和伏安曲线,并分析了分子器件产生电子输运性质的原因.研究结果发现:C_(40)富勒烯的化学活性明显强于富勒烯C_(60)和C_(32)分子,在一些分子能级处,该分子为一个良导体. The first principle based on the density functional theory (DFT) and nonequilibrium Green's function method is adopted for analyzing the electronic structure and electronic transmission properties of C40 fullerene bridged between Au(1,1,1) electrodes. In this paper the electronic transmission probability curve and I-V curve are calculated out, and the factors resulted in the electronic transmission characteristic are analyzed. The results show: That the chemical activity of C40 fullerene is stronger than those of C60 and C32 fullerenes. In many molecular energy levels C40 fullerene is a good conductor.
出处 《原子与分子物理学报》 CAS CSCD 北大核心 2012年第5期833-836,共4页 Journal of Atomic and Molecular Physics
基金 教育部国际合作研究项目(20060360563) 南京大学固体微结构物理国家重点实验室项目M06008) 中央高校基本科研业务费专项资金资助项目(JUSRP31104) 江苏省教育科学"十一五"规划课题(2008年度高教系统34 江苏省高等教育学会"十一五"教育科学规划课题(JS053) 教育部基本科研业务费专项资金资助项目(2012年基本科研-青年基金)
关键词 富勒烯C40 非平衡格林函数 电子传导 伏安曲线 Fullerene C40 nonequilibrium Green's function electronic conductor I-V curve
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参考文献15

  • 1Kroto H W, Heath J R, O'Brien S C, etal. C6o; Buckminsterfullerene[J]. Nature, 1985, 318:162. 被引量:1
  • 2Iijima S. Helical mierotubules of graphitic carbon[J]. Nature, 1991, 354:56. 被引量:1
  • 3Stokbro K, Taylor j, Brandbyge M, et al. Theoreti- cal study of the nonlinear conductance of Di-thiol benzene coupled to Au (1 1 i) surfaces via thiol and thiolate bonds [J].Computational Material. Sci- ence, 2003, 27:151. 被引量:1
  • 4Strange M, Thygesen K S, Jacobsen K W. Electrontransport in a Pt -- CO- Pt nanocontact: Density functional theory calculations [J]. Phys. Rev. B, 2006, B73:125424. 被引量:1
  • 5Landauer R. Can a length of perfect conductor have a resistance? [J]. Phys. Lett. A, 1981, 85:91. 被引量:1
  • 6Buttiker M, Landauer R, Imry Y, et al. Generalized many-channel conduct anee formula with application to small rings[J]. Phys. Rev. B, 1985, 31:6207. 被引量:1
  • 7霍新霞,王利光,Terence K S W.C_(32)富勒烯分子器件的电子结构和传输特性研究[J].原子与分子物理学报,2009,26(1):50-56. 被引量:9
  • 8Gimzewski J K, Joachim C. Nanoscale science of sin- gle molecules using local probes[J]. Science. , 1999, 283 : 1683. 被引量:1
  • 9Joachim C, Gimzewski J K, Aviram A. Electronics using hybrid-molecular and mono-molccular devices [J]. Nature, 2000, 408:541. 被引量:1
  • 10Bumm L A, Arnold J J, Cygan M T, etal. Are single molecular wires conducting?[J].Science, 1996, 271:1705. 被引量:1

二级参考文献58

共引文献25

同被引文献27

  • 1Kroto H W,Heath J R,O'Brien S C. C60:Buckminsterfullerene[J].{H}NATURE,1985.162. 被引量:1
  • 2Kobayashi S,Mori S,Iida S. Conductivity and field Effect transistor of La2@C80 metallofullerene[J].J Am Chem Soc,2003.8116. 被引量:1
  • 3Iijima S. Helical microtubules of graphitic carbon[J].{H}NATURE,1991.56. 被引量:1
  • 4Kelly T R,Silva H De,Silva R A. Unidirectional rotary motion in a molecular system[J].{H}NATURE,1999.150. 被引量:1
  • 5Cornil J,Karzazi Y,Bredas J L. Negative differential Resistance in phenylene ethynylene oligomers[J].{H}Journal of the American Chemical Society,2002,(14):3516. 被引量:1
  • 6Li X F,Chen K Q,Wang L L. Effect of intertube interaction on the transport properties of a carbon double-nanotube device[J].Appl Ohys Lett,2007,(23):233512. 被引量:1
  • 7Feng Y Q,Zhang R Q,Lee S T. Simulation of gatecontrolled Coulomb blockades in carbon nanotubes[J].{H}Journal of Applied Physics,2004.5729. 被引量:1
  • 8Stengel M,Vita A D. Baldereschi A Adatom-vacancy mechanisms for the C60/Al(111)-(6× 6) reconstruction[J].{H}Physical Review Letters,2003.166101. 被引量:1
  • 9Landauer R. Can a length of perfect conductor have a resistance[J].{H}Physics Letters A,1981.91. 被引量:1
  • 10Kroto H W, Heath J R, O'Brien S C, et al. C6o: Buckminsterfullerene [ J ]. Nature, 1985, 318 : 162. 被引量:1

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