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Special electronic structures and quantum conduction of B/P co-doping carbon nanotubes under electric field using the first principle

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Boron (B)/phosphorus (P)-doped single-wall carbon nanotubes (B-PSWNTs) are studied by using the first-principle method based on density function theory. Mayer bond order, band structure, electrons density and density of states are calculated. It concludes that the B-PSWNTs have special band structure, which is quite different from BN nanotubes, and that metallic carbon nanotubes will be converted to semiconductor due to boron/phosphorus co-doping, which breaks the symmetrical structure. The bonding forms in B-PSWNTs are investigated in detail. Besides, Mulliken charge population and the quantum conductance are also calculated to study the quantum transport characteristics of B-PSWNT hetero-junction. It is found that the position of p–n junction in this hetero-junction will be changed as the applied electric field increase and it performs the characteristics of diode.

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Correspondence to QingYi Shao.

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Chen, A., Shao, Q. & Li, Z. Special electronic structures and quantum conduction of B/P co-doping carbon nanotubes under electric field using the first principle. J Nanopart Res 13, 2275–2283 (2011). https://doi.org/10.1007/s11051-010-9986-2

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  • DOI: https://doi.org/10.1007/s11051-010-9986-2

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