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
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Publication details
All authors or editors: Hiltunen, Vesa-Matti; Koskinen, Pekka Johannes; Mentel, Kamila K.; Manninen, Jyrki; Myllyperkiö, Pasi; Johansson, Andreas; Pettersson, Mika
Journal or series: Journal of Physical Chemistry C
ISSN: 1932-7447
eISSN: 1932-7455
Publication year: 2020
Volume: 124
Issue number: 15
Pages range: 8371-8377
Publisher: American Chemical Society
Publication country: United States
Publication language: English
DOI: https://doi.org/10.1021/acs.jpcc.0c00194
Publication open access: Not 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.
Keywords: laser technology; luminescence; spectroscopy
Free keywords: Raman spectroscopy
Contributing organizations
Related projects
- Lättänien metallien laskennallinen tutkimus
- Koskinen, Pekka
- Academy of Finland
- Direct laser writing of electronic devices on graphene by two-photon oxidation and nitrogen doping
- Pettersson, Mika
- Academy of Finland
Ministry reporting: Yes
Reporting Year: 2020
JUFO rating: 2