Electron-hole generation and recombination rates for Coulomb scattering in graphene

被引：137

作者：

Rana, Farhan ^{[1
]}

机构：

[1] Cornell Univ, Sch Elect & Comp Engn, Ithaca, NY 14853 USA

来源：

PHYSICAL REVIEW B | 2007年 / 76卷 / 15期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.76.155431

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We calculate electron-hole generation and recombination rates for Coulomb scattering (Auger recombination and impact ionization) in zero band-gap graphene. The conduction and valence band dispersion relation in graphene together with energy and momentum conservation requirements restrict the phase space for Coulomb scattering so that electron-hole recombination times can be much longer than 1 ps for electron-hole densities smaller than 10(12) cm(-2).

引用

页数：5

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