Graphene nanoribbons' exciton bohr radius?

07 February 2014 1 9K Report

Would you please tell me the exciton bohr radius of Graphene quantum dot, graphen nanoribbons, even graphite? I need the refrence too. Thank you.

Jayakrishna Khatei

There is no bohr exciton radius concept for graphene nanoribbons or quantum dots as its effective mass diverges at dirac point. It has some other characteristic length scales which you can find from this paper.

http://pubs.acs.org/doi/full/10.1021/jz100862f

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