RT Journal Article
T1 Long-Range Electron Transport Donor-Acceptor in Nonlinear Lattices
A1 Chetverikov, Alexander
A1 Ebeling, Werner
A1 Velarde, Manuel G.
AB We study here several simple models of the electron transfer (ET) in a one-dimensional nonlinear lattice between a donor and an acceptor and propose a new fast mechanism of electron surfing on soliton-like excitations along the lattice. The nonlinear lattice is modeled as a classical one-dimensional Morse chain and the dynamics of the electrons are considered in the tight-binding approximation. This model is applied to the processes along a covalent bridge connecting donors and acceptors. First, it is shown that the electron forms bound states with the solitonic excitations in the lattice. These so-called solectrons may move with supersonic speed. In a heated system, the electron transfer between a donor and an acceptor is modeled as a diffusion-like process. We study in detail the role of thermal factors on the electron transfer. Then, we develop a simple model based on the classical Smoluchowski–Chandrasekhar picture of diffusion-controlled reactions as stochastic processes with emitters and absorbers. Acceptors are modeled by an absorbing boundary. Finally, we compare the new ET mechanisms described here with known ET data. We conclude that electron surfing on solitons could be a special fast way for ET over quite long distances.
PB MDPI
SN 1099-4300
YR 2016
FD 2016
LK https://hdl.handle.net/20.500.14352/23835
UL https://hdl.handle.net/20.500.14352/23835
LA eng
DS Docta Complutense
RD 12 abr 2025