Making Graphene Luminescent by Oxygen Plasma Treatment

Tobias Gokus; Rajeev Nair; A. Bonetti; Miriam Böhmler; Antonio Lombardo; Konstantin ‘kostya’ Novoselov; A. K. Geǐm; Andrea C. Ferrari; Achim Hartschuh

doi:10.1021/nn9012753

Making Graphene Luminescent by Oxygen Plasma Treatment

ACS Nano 3(12): 3963-3968

Article 2009 English

Abstract

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We show that strong photoluminescence (PL) can be induced in single-layer graphene using an oxygen plasma treatment. The PL is spatially uniform across the flakes and connected to elastic scattering spectra distinctly different from those of gapless pristine graphene. Oxygen plasma can be used to selectively convert the topmost layer when multilayer samples are treated.

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