Publication Type |
Journal Article |
School or College |
College of Science |
Department |
Physics |
Creator |
Vardeny, Zeev Valentine |
Other Author |
Lee, C. H.; Yu, G.; Moses, D.; Srdanov, V. I.; Wei, X. |
Title |
Transient and steady-state photoconductivity of a solid C60 film |
Date |
1993-09 |
Description |
We report the experimental results of the subnanosecond time-resolved transient photoconductivity (PC) of solid C60 film at various photon energies, and the spectral response of the steady-state PC in the energy range between 1.5 and 4.5 eV. The initial fast transient PC response decays exponentially in the subnanosecond time regime, followed by a weak slower component. Decay time at ħω>=2.0 eV is longer than that at ħω=2.6 and 2.9 eV. At ħω=2.0 eV, transient PC peak shows a superlinear intensity dependence, suggesting carrier generation via exciton-exciton collision ionization, consistent with the recent results of fast photoinduced absorption. However, the linear intensity dependence of the transient PC at ħω=2.6 and 2.9 eV and a sharp increase of the transient and steady-state PC response at ħω>=2.3 eV indicate direct photogeneration of free electrons and holes at ħω> 2.3 eV. |
Type |
Text |
Publisher |
American Physical Society |
Journal Title |
Physical Review B |
Volume |
48 |
Issue |
11 |
First Page |
8506 |
Last Page |
8509 |
DOI |
10.1103/PhysRevB.48.8506 |
citatation_issn |
0163-1829 |
Subject |
Transient photoconductivity; Steady-state photoconductivity; Solid C60 film |
Subject LCSH |
Photoconductivity; Thin films -- Optical properties |
Language |
eng |
Bibliographic Citation |
Lee, C. H., Yu, G., Moses, D., Srdanov, V. I., Wei, X., & Vardeny, Z. V. (1993). Transient and steady-state photoconductivity of a solid C60 film. Physical Review B. 48(11), 8506-9. |
Rights Management |
(c) American Physical Society http://dx.doi.org/10.1103/PhysRevB.48.8506 |
Format Medium |
application/pdf |
Format Extent |
442,290 bytes |
Identifier |
ir-main,9722 |
ARK |
ark:/87278/s61551g4 |
Setname |
ir_uspace |
ID |
705652 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s61551g4 |