Optical imaging and spectroscopy of atomically precise armchair graphene nanoribbons
Creators
- 1. Department of Physics, University of California at Berkeley, Berkeley, California 94720, United States
- 2. Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
- 3. Department of Materials Science and Engineering, University of Washington, Seattle, Washington, United States
- 4. Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- 5. Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany
- 6. Institute of Physical Chemistry, Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany
- 7. Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
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Description
The record contains data that support the work where we report the optical imaging and absorption spectroscopy on atomically precise armchair graphene nanoribbons (GNRs) on insulating fused silica substrates. This is achieved by controlling light polarization on macroscopically aligned GNRs which greatly enhances the optical contrast of the submonolayer GNRs on the insulating substrates. We measure the linear absorption spectra of 7-armchair and 9-armchair GNRs in this study, and the experimental data agree qualitatively with ab inito calculation results. The polarization spectroscopy technique enables an unambiguous optical identification of GNRs and provides a rapid tool to characterize the transferred film over a large area.
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References
Journal reference (Manuscript where the results are discussed) S. Zhao, G. Borin Barin, T. Cao, J. Overbeck, R. Darawish, T. Lyu, S. Drapcho, S. Wang, T. Dumslaff, A. Narita, M.Calame, K. Müllen, S. Louie, P. Ruffieux, R. Fasel, F. Wang, Nano Lett. 20, 1124 - 1130 (2020), doi: 10.1021/acs.nanolett.9b04497