Theoretical Study of Carrier Mobility in Two-Dimensional Tetragonal Carbon Allotrope from Porous Graphene

【摘要】 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 atΓpoint.T-CA possesses a high carrier mobility of the order of 10⁴ cm²V^-1s^-1.As our study demonstrates,T-CA has potential applications for next-generation electronic materials.更多还原

【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 atΓpoint.T-CA possesses a high carrier mobility of the order of 10⁴ cm²V^-1s^-1.As our study demonstrates,T-CA has potential applications for next-generation electronic materials.更多还原