Making Graphene Luminescent by Oxygen Plasma Treatment
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Abstract
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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ACS Nano
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3
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American Chemical Society
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Engineering and Physical Sciences Research Council (EP/G030480/1)
Engineering and Physical Sciences Research Council (EP/G042357/1)
Royal Society (TG102524)
Engineering and Physical Sciences Research Council (EP/K01711X/1)
Engineering and Physical Sciences Research Council (EP/K017144/1)
Engineering and Physical Sciences Research Council (EP/M507799/1)
European Commission (284558)
European Commission (604391)
European Commission Horizon 2020 (H2020) ERC (206409)
European Commission Horizon 2020 (H2020) Future and Emerging Technologies (FET) (696656)
The Royal Society (wm090070)
The Royal Society (fi061247)
European Commission (246026)
European Research Council (319277)
Engineering and Physical Sciences Research Council (EP/G042357/1)
Royal Society (TG102524)
Engineering and Physical Sciences Research Council (EP/K01711X/1)
Engineering and Physical Sciences Research Council (EP/K017144/1)
Engineering and Physical Sciences Research Council (EP/M507799/1)
European Commission (284558)
European Commission (604391)
European Commission Horizon 2020 (H2020) ERC (206409)
European Commission Horizon 2020 (H2020) Future and Emerging Technologies (FET) (696656)
The Royal Society (wm090070)
The Royal Society (fi061247)
European Commission (246026)
European Research Council (319277)
A.C.F., K.S.N., and A.K.G. thank the Royal Society and the European Research Council (Grants NANOPOTS and GRAPHENE), A.H. the Deutsche Forschungsgemeinschaft (DFG-grant HA4405/4-1) and Nanosystems Initiative Munich (NIM), A. L. from the University of Palermo, Italy.