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



Publication year2020


Issue number15

Pages range8371-8377

PublisherAmerican Chemical Society

Publication countryUnited States

Publication languageEnglish


Publication open accessNot open

Publication channel open access

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


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

Contributing organizations

Related projects

Ministry reportingYes

Reporting Year2020

JUFO rating2

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