KINETICS OF ONE-DIMENSIONAL DIFFUSION-LIMITED REACTIONS IN POLYACETYLENE LIKE CHAIN IN THE PRESENCE OF PARTICLE INPUT AND EXTERNAL ELECTRIC-FIELD - COMPUTER-SIMULATION

Diffusion-limited reactions of A+A-->0, A+B-->0 types on one-dimension al lattice (10(5) sites) in the presence of particle source (photogene ration of unlike charged solitons) have been studied by using of propo sed biased random walk model. The particle's distribution has been stu died using the pair-correlation functions. The dependencies of steady- state concentrations and relaxation times on the system parameters - p hotogeneration rate and external electric field have been obtained. Th e phenomenon of stochastic aggregation of similarly charged particles has been found in the case of random initial particles' distribution. The results are in a good agreement with analytical data on fluctuatio nal kinetics of bimolecular reactions and appropriate experimental dat a on photoconductivity in oriented (CH)(X).