Photocurrent dynamics in a poly(phenylene vinylene)-based photorefractive composite
- All parameters describing the charge carrier dynamics in a poly(phenylene vinylene)-based photorefractive (PR) composite relevant to PR grating dynamics were determined using photoconductivity studies under various illumination conditions. In particular, the values of the coefficients for trap filling and recombination of charges with ionized sensitizer molecules could be extracted independently. It is concluded that the PR growth time without preillumination is mostly determined by the competition between deep trap filling and recombination with ionized sensitizer molecules. Further, the pronounced increase in PR speed upon homogeneous preillumination (gating) as reported recently is quantitatively explained by deep trap filling
| Verfasserangaben: | Lazar Kulikovsky, Dieter NeherORCiDGND, E. Mecher, Klaus Meerholz, H. H. Horhold, O. Ostroverkhova |
|---|---|
| ISSN: | 1098-0121 |
| Publikationstyp: | Wissenschaftlicher Artikel |
| Sprache: | Englisch |
| Jahr der Erstveröffentlichung: | 2004 |
| Erscheinungsjahr: | 2004 |
| Datum der Freischaltung: | 24.03.2017 |
| Quelle: | Physical Review / B. - ISSN 1098-0121. - 69 (2004), 12, S. 11 |
| Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| Peer Review: | Referiert |
| Name der Einrichtung zum Zeitpunkt der Publikation: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik |
