A1 Journal article (refereed)
Making Graphene Luminescent by Direct Laser Writing (2020)


Hiltunen, V.-M., Koskinen, P. J., Mentel, K. K., Manninen, J., Myllyperkiö, P., Johansson, A., & Pettersson, M. (2020). Making Graphene Luminescent by Direct Laser Writing. Journal of Physical Chemistry C, 124(15), 8371-8377. https://doi.org/10.1021/acs.jpcc.0c00194


JYU authors or editors


Publication details

All authors or editorsHiltunen, Vesa-Matti; Koskinen, Pekka Johannes; Mentel, Kamila K.; Manninen, Jyrki; Myllyperkiö, Pasi; Johansson, Andreas; Pettersson, Mika

Journal or seriesJournal of Physical Chemistry C

ISSN1932-7447

eISSN1932-7455

Publication year2020

Volume124

Issue number15

Pages range8371-8377

PublisherAmerican Chemical Society

Publication countryUnited States

Publication languageEnglish

DOIhttps://doi.org/10.1021/acs.jpcc.0c00194

Publication open accessNot open

Publication channel open access

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/68363


Abstract

Graphene is not intrinsically luminescent, due to a lack of bandgap, and methods for its creation are tricky for device fabrication. In this study, we create luminescent graphene patterns by a simple direct laser writing method. We analyze the graphene using Raman spectroscopy and find that the laser writing leads to generation of line defects after initial formation of point defects. This Raman data enables us to create a model that explains the luminescence by a formation of small domains due to confinement of graphene by line defects, which is conceptually similar to the mechanism of luminescence in graphene quantum dots.


Keywordslaser technologyluminescencespectroscopy

Free keywordsRaman spectroscopy


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Ministry reportingYes

Reporting Year2020

JUFO rating2


Last updated on 2024-22-04 at 13:41