Patterning and tuning of electrical and optical properties of graphene by laser induced two-photon oxidation

We demonstrate a simple all-optical patterning method for graphene, based on laser induced two-photon oxidation. By tuning the intensity and dose of irradiation, the level of oxidation is controlled, the band gap is introduced and electrical and optical properties are continuously tuned. Complex pat...

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Veröffentlicht in:	Nanoscale 2015-02, Vol.7 (7), p.2851-2855
Hauptverfasser:	Aumanen, Jukka, Johansson, Andreas, Koivistoinen, Juha, Myllyperkiö, Pasi, Pettersson, Mika
Format:	Artikel
Sprache:	eng
Schlagworte:	Electronics Graphene Lasers Optical properties Optoelectronic devices Oxidation Patterning Tuning
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creator	Aumanen, Jukka Johansson, Andreas Koivistoinen, Juha Myllyperkiö, Pasi Pettersson, Mika
description	We demonstrate a simple all-optical patterning method for graphene, based on laser induced two-photon oxidation. By tuning the intensity and dose of irradiation, the level of oxidation is controlled, the band gap is introduced and electrical and optical properties are continuously tuned. Complex patterning is performed for air-suspended monolayer graphene and for graphene on substrates. The presented concept allows development of all-graphene electronic and optoelectronic devices with an all-optical method.
doi_str_mv	10.1039/c4nr05207b
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source	Royal Society Of Chemistry Journals; Alma/SFX Local Collection
subjects	Electronics Graphene Lasers Optical properties Optoelectronic devices Oxidation Patterning Tuning
title	Patterning and tuning of electrical and optical properties of graphene by laser induced two-photon oxidation
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