Theoretical Calculation of Optical Absorption Spectrum for Armchair Graphene Nanoribbon

摘要: The optical absorption spectrum of armchair graphene nanoribbon has been studied using first principle calculation. For this purpose, we calculate the band structure and therefore energy gap A-GNRs by tight- binding model including edge deformation due to passivation edges hydrogen atoms. Then from single electron approximation, obtain real part conductance A-GNRs. Results shows that all families behaves like a semiconductor tuning shape wide ribbon one can control for applications