175 citations · 252 across the 8 of their papers we have counts for
8 papers
Effect of Energetic Disorder on the Open-Circuit Voltage in Organic Bulk Heterojunction Composites
Kazuhiko Seki, Kazuhiro Marumoto, M. Tachiya
Under open-circuit condition, the current is not extracted and the photogenerated carriers in principle disappear only by recombination. We study the open-circuit voltage $V_{\rm O…
Reversible diffusion-influenced reactions of an isolated pair on two dimensional surfaces
Thorsten Prüstel, M. Tachiya
We investigate reversible diffusion-influenced reactions of an isolated pair in two dimensions. To this end, we employ convolution relations that permit deriving the survival proba…
Theory of Bulk Recombination in a Medium with Energetic Disorder under Continuous Irradiation with Excitation Light
Kazuhiko Seki, M. Tachiya
We study bulk recombination in a medium with energetic disorder by using the multiple trapping (MT) model under continuous irradiation with excitation light. Charge densities are s…
Reaction under vacancy-assisted diffusion at high quencher concentration
Kazuhiko Seki, M. Tachiya
Theory of diffusion-mediated reactions is already established for the target problem in the dilute limit, where the immobile target is surrounded by many quenchers. For lattice ran…
Orientational relaxation in a dispersive dynamic medium : Generalization of the Kubo-Ivanov-Anderson jump diffusion model to include fractional environmental dynamics
K. Seki, B. Bagchi, M. Tachiya
Ivanov-Anderson (IA) model (and an earlier treatment by Kubo) envisages a decay of the orientational correlation by random but large amplitude molecular jumps, as opposed to infini…
Dispersive diffusion controlled distance dependent recombination in amorphous semiconductors
Kazuhiko Seki, Mariusz Wojcik, M. Tachiya
The photoluminescence in amorphous semiconductors decays according to power law at long times. The photoluminescence is controlled by dispersive transport of electrons…