TY  - JOUR
A1  - Kulikovsky, Lazar
A1  - Neher, Dieter
A1  - Mecher, E.
A1  - Meerholz, Klaus
A1  - Horhold, H. H.
A1  - Ostroverkhova, O.
T1  - Photocurrent dynamics in a poly(phenylene vinylene)-based photorefractive composite
N2  - 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
Y1  - 2004
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/15216
SN  - 1098-0121
ER  -