About electron transfer over long distances with tunable sub/supersonic velocities.

Autor: Velarde, M. G., Chetverikov, A. P., Launay, J.-P., Ebeling, W., Wilson, E. G.
Předmět:
Zdroj: Journal of Chemical Physics; 7/28/2020, Vol. 153 Issue 4, p1-14, 14p, 9 Diagrams, 1 Chart, 5 Graphs
Abstrakt: Provided in this paper is a theory of long-range electron transfer with near sound (supersonic or subsonic) velocity along one-dimensional crystal lattices. The theory represents the development of an earlier work by introducing Marcus formulation. To illustrate its application to a realistic case, the theory is used to offer an explanation of two puzzling observations made by Donovan and Wilson in transient photoconduction experiments with non-dopable perfectly crystalline polydiacetylene crystals in the presence of an electric field: transport velocity value close to sound velocity being independent of field for four orders of magnitude of field (102 V/m–106 V/m) and, in the low field values, an ultra-high mobility greater than 20 m2/V s. We also study factors eventually leading to lowering of the transport velocity. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index