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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 10~4 cm~2V~(-1)s~(-1).As our study demonstrates,T-CA has potential applications for next-generation electronic materials.
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 Γpoint.T-CA possesses a high carrier mobility of the order of 10 ~ 4 cm ~ 2V ~ (-1) s ~ .As our study demonstrates, T-CA has potential applications for next-generation electronic materials.