Martin, S. J. and Kambili, Agapi and Walker, A. B. (2003) Temperature and field dependence of the mobility of highly ordered conjugated polymer films. PHYSICAL REVIEW B, 67 (16): 165214. ISSN 2469-9950, 2469-9969
Full text not available from this repository. (Request a copy)Abstract
The transport properties of organic light-emitting diodes in which the emissive layer is composed of highly ordered conjugated polymers have been investigated. We have performed simulations of the current transient response to an illumination pulse via the Monte Carlo approach, and from the transit times we have extracted the mobility of the charge carriers as a function of both the electric field and the temperature. The transport properties of such films are different from their disordered counterparts, with charge carrier mobilities exhibiting only a weak dependence on both the electric field and temperature. We show that for spatially ordered polymer films, this weak dependence arises for thermal energy being comparable to the energetic disorder, due to the combined effect of the electrostatic and thermal energies. The inclusion of spatial disorder, on the other hand, does not alter the qualitative behavior of the mobility, but results in decreasing its absolute value.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CHARGE-TRANSPORT; POLYFLUORENE; DIODES; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 17 Aug 2021 11:00 |
| Last Modified: | 17 Aug 2021 11:00 |
| URI: | https://pred.uni-regensburg.de/id/eprint/39121 |
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