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arXiv · 1109.3109

The Structural, Energetic and Electronic Properties of Doped Carbon Nanotubes by Encapsulation of MCp2 (M=Fe, Co, Ni): a Theoretical Investigation

Fenglei Cao·Wei Ren·Xianfang Xu·Ye-Xiang Tong·Cunyuan Zhao
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Abstract

Metallocenes can be encapsulated inside the carbon nanotubes. The structural, energetic and electronic properties of organometallic MCp2@SWCNT are obtained from DFT method. We verify that such encapsulation is noncovalent functionalization, and examined binding energies and charge transfers of MCp2@(16,0)SWCNT systems. Consistent with recent experimental findings, the optimal distance between FeCp2 center and near tube-wall is 4.7 (5.1) Å for the configuration where MCp2's five-fold axis is parallel (vertical) to nanotube axis, while the minimal diameter is 9.4 (10.2) Å to exothermically encapsulate FeCp2 molecules. Finally we clarify the doping effects near the bandgap by encapsulations of CoCp2 and NiCp2.

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Fenglei Cao, Wei Ren, Xianfang Xu, Ye-Xiang Tong, Cunyuan Zhao. 2011-09-14. The Structural, Energetic and Electronic Properties of Doped Carbon Nanotubes by Encapsulation of MCp2 (M=Fe, Co, Ni): a Theoretical Investigation. https://doi.org/10.1016/j.cplett.2011.07.010

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