In-situ Raman study of laser-induced graphene oxidation

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Details zur Publikation

Autor(en): Herziger F, Mirzayev R, Poliani E, Maultzsch J
Zeitschrift: physica status solidi (b)
Jahr der Veröffentlichung: 2015
Band: 252
Heftnummer: 11
Seitenbereich: 2451-2455
ISSN: 0370-1972
eISSN: 1521-3951


We present in-situ Raman measurements of laser-induced oxidation in exfoliated single-layer graphene. By using high-power laser irradiation, we can selectively and in a controlled way initiate the oxidation process and investigate its evolution over time. Our results show that the laser-induced oxidation process is divided into two separate stages, namely tensile strain due to heating and subsequent pp-type doping due to oxygen binding. We discuss the temporal evolution of the D/G-mode ratio during oxidation and explain the unexpected steady decrease of the defect-induced D-mode at long irradiation times. Our results provide a deeper understanding of the oxidation process in single-layer graphene and demonstrate the possibility of sub-micrometer patterning of graphene by an optical method.

FAU-Autoren / FAU-Herausgeber

Maultzsch, Janina Prof. Dr.
Lehrstuhl für Experimentalphysik

Autor(en) der externen Einrichtung(en)
Technische Universität Berlin


Herziger, F., Mirzayev, R., Poliani, E., & Maultzsch, J. (2015). In-situ Raman study of laser-induced graphene oxidation. physica status solidi (b), 252(11), 2451-2455.

Herziger, Felix, et al. "In-situ Raman study of laser-induced graphene oxidation." physica status solidi (b) 252.11 (2015): 2451-2455.


Zuletzt aktualisiert 2018-19-09 um 15:53