Second hyperpolarizability of hexagonal graphene quantum dots: Effects of size and structural defects
Carbon trends(2021)
Abstract
•The size and edge effects on the three-order NLO properties of graphene quantum dots are studied.•The structural defects play important role in the electronic and three-order NLO properties of the graphene quantum dots.•Stone-Wales defects can enhance the second hyperpolarizability of graphene quantum dots due to the reduced energy gap.
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Key words
Graphene,Nonlinear optics,Structural defect,Density functional theory
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