Prechtel, Leonhard and Song, Li and Manus, Stephan and Schuh, Dieter and Wegscheider, Werner and Holleitner, Alexander W. (2011) Time-Resolved Picosecond Photocurrents in Contacted Carbon Nanotubes. NANO LETTERS, 11 (1). pp. 269-272. ISSN 1530-6984,
Full text not available from this repository. (Request a copy)Abstract
We introduce coplanar stripline circuits to resolve the ultrafast photocurrent dynamics of freely suspended carbon nanotubes (CNTs) in the time domain. By applying an on-chip pump-probe laser spectroscopy, we demonstrate that CNTs, contacted by metal electrodes, exhibit a picosecond photocurrent response. We find a combination of an optically induced ultrafast displacement current, transport of photogenerated charge carriers at the Fermi velocity to the electrodes, and interband charge-carrier recombination processes to dominate the ultrafast photocurrent of the CNTs.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SPECTROSCOPY; TRANSPORT; FILMS; Time-resolved optoelectronic nanoscale transport; carbon nanotubes |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Rupert Huber |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 01 Jul 2020 06:52 |
| Last Modified: | 01 Jul 2020 06:52 |
| URI: | https://pred.uni-regensburg.de/id/eprint/21629 |
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