Electron drift velocity and mobility in graphene
Electron drift velocity and mobility in graphene
复制标题
石墨烯中的电子漂移速度和迁移率
DOI:
10.1007/s11467-017-0744-0
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发表时间:
2018-04
影响因子:
7.5
通讯作者:
Liu Jin-Long
中科院分区:
文献类型:
--
作者:
Dong Hai-Ming;Duan Yi-Feng;Huang Fei;Liu Jin-Long
We present a theoretical study of the electric transport properties of graphene-substrate systems. The drift velocity, mobility, and temperature of the electrons are self-consistently determined using the Boltzmann equilibrium equations. It is revealed that the electronic transport exhibits a distinctly nonlinear behavior. A very high mobility is achieved with the increase of the electric fields increase. The electron velocity is not completely saturated with the increase of the electric field. The temperature of the hot electrons depends quasi-linearly on the electric field. In addition, we show that the electron velocity, mobility, and electron temperature are sensitive to the electron density. These findings could be employed for the application of graphene for high-field nano-electronic devices.
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