Analytical model of carbon nanotube electrostatics:Density of states, effective mass, carrier density, and quantum capacitance

被引:13
作者
Akinwande, Deji [1 ]
Nishi, Yoshio
Wong, H. -S. Philip
机构
[1] Stanford Univ, Ctr Integrated Syst, Stanford, CA 94305 USA
来源
2007 IEEE INTERNATIONAL ELECTRON DEVICES MEETING, VOLS 1 AND 2 | 2007年
关键词
D O I
10.1109/IEDM.2007.4419056
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Fundamental electrostatic properties of achiral carbon nanotubes (CNTs) are derived analytically. These include an exact derivation of the density of states within the nearest neighbor fight-binding formalism, the group velocity, and the effective mass. In addition, the non-degenerate equilibrium carrier density, and quantum capacitance are presented analytically, The quantum capacitance is used to provide a low energy C-V theory for a top-gated CNT device with good correlation to experimental data.
引用
收藏
页码:753 / +
页数:2
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