Projects per year
Abstract
We investigate with Raman spectroscopy how gold nanostructures of different shape, size and geometry locally modify a graphene cover layer through strain. The resulting phonon softening translates into frequency downshifts of up to 85 cm-1 for the 2D-mode of graphene. With spatially resolved and excitation dependent Raman measurements we demonstrate that the downshifted Raman peaks exclusively arise from strained graphene subject to plasmonic enhancement by the nanostructures. The signals arise from an area well below the size of the laser spot. They serve as a local probe for the interaction between graphene and intense light fields. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original language | English |
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Pages (from-to) | 1067-1070 |
Number of pages | 3 |
Journal | Physica Status Solidi - Rapid Research Letters |
Volume | 7 |
Issue number | 12 |
DOIs | |
Publication status | Published - Dec 2013 |
Keywords
- Graphene
- Plasmons
- Raman scattering
- Strain
Research Beacons, Institutes and Platforms
- National Graphene Institute
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Dive into the research topics of 'Strained graphene as a local probe for plasmon-enhanced Raman scattering by gold nanostructures'. Together they form a unique fingerprint.Projects
- 1 Finished
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Graphene-based membranes
Budd, P. (PI), Carbone, P. (CoI), Casiraghi, C. (CoI), Grieve, B. (CoI), Haigh, S. (CoI), Holmes, S. (CoI), Jivkov, A. (CoI), Kinloch, I. (CoI), Raveendran Nair, R. (CoI), Schroeder, S. (CoI), Siperstein, F. (CoI) & Vijayaraghavan, A. (CoI)
1/07/13 → 30/06/18
Project: Research