| ATOMIC AND MOLECULAR PHYSICS |
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Theoretical Study of Carrier Mobility in Two-Dimensional Tetragonal Carbon Allotrope from Porous Graphene |
| Song Gao1, Hui Xiang1, Bo Xu1**, Yi-Dong Xia1**, Jiang Yin1,2, Zhi-Guo Liu1,2 |
1National Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093
2Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093
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| Cite this article: |
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Song Gao, Hui Xiang, Bo Xu et al 2016 Chin. Phys. Lett. 33 083101 |
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Abstract The carrier mobility of two-dimensional tetragonal carbon allotrope (T-CA) from porous graphene is investigated by first-principles calculations. T-CA can be constructed from divacancy and Stone–Thrower–Wales defects from graphene. T-CA is a direct semiconductor with a band gap of 0.4 eV at ${\it \Gamma}$ point. T-CA possesses a high carrier mobility of the order of 10$^{4}$ cm$^{2}$V$^{-1}$s$^{-1}$. As our study demonstrates, T-CA has potential applications for next-generation electronic materials.
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Received: 29 April 2016
Published: 31 August 2016
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| PACS: |
31.15.eg
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(Exchange-correlation functionals (in current density functional theory))
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31.15.es
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(Applications of density-functional theory (e.g., to electronic structure and stability; defect formation; dielectric properties, susceptibilities; viscoelastic coefficients; Rydberg transition frequencies))
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