Echtermeyer, T. J. and Nene, P. S. and Trushin, M. and Gorbachev, R. V. and Eiden, A. L. and Milana, S. and Sun, Z. and Schliemann, J. and Lidorikis, E. and Novoselov, K. S. and Ferrari, A. C. (2014) Photothermoelectric and Photoelectric Contributions to Light Detection in Metal-Graphene-Metal Photodetectors. NANO LETTERS, 14 (7). pp. 3733-3742. ISSN 1530-6984, 1530-6992
Full text not available from this repository. (Request a copy)Abstract
Graphene's high mobility and Fermi velocity, combined with its constant light absorption in the visible to far-infrared range, make it an ideal material to fabricate high-speed and ultrabroadband photodetectors. However, the precise mechanism of photodetection is still debated. Here, we report wavelength and polarization-dependent measurements of metal-graphene-metal photodetectors. This allows us to quantify and control the relative contributions of both photothermo- and photoelectric effects, both adding to the overall photoresponse. This paves the way for a more efficient photodetector design for ultrafast operating speeds.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | RAMAN-SPECTROSCOPY; PHOTOCURRENT; PHOTORESPONSE; SCATTERING; PLASMONS; Graphene; photodetectors; Raman spectroscopy; photoresponse; optoelectronics |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group John Schliemann |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 17 Oct 2019 11:02 |
| Last Modified: | 17 Oct 2019 11:02 |
| URI: | https://pred.uni-regensburg.de/id/eprint/9956 |
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