Filters
Results 1 - 1 of 1
Results 1 - 1 of 1.
Search took: 0.021 seconds
Benderskii, V. A.; Kats, E. I., E-mail: bender@icp.ac.ru, E-mail: kats@itp.ac.ru2018
AbstractAbstract
[en] The mechanisms of formation and coherent transport of free and bound electron excited states in organic solar cells are considered. In the model of a photocell (one-dimensional chain of photosensitive molecules in a uniform electric field of the p–n junction), the energy eigenvalues and the eigenfunctions of molecular excitons, charge-transfer excitons (CTE), and electron–hole pairs are determined. It is assumed that processes of transport between adjacent sites dominate in the case of the Coulomb interaction between the electron and the hole constituting a CTE. With decreasing Coulomb coupling energy, the CTE wavefunctions become superpositions of localized functions of the increasing number of sites. The decay time determined by independent transitions of the electron and the hole in this case becomes shorter than the transport time of the CTE as a whole. It is shown that autoionization of molecular excitons and small-radius CTEs in a strong electric field of a nanosize chain induces the mixing of states of these excitons as well as of electron–hole pairs, which substantially increases the quantum yield of the photoeffect.
Source
Copyright (c) 2018 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Journal of Experimental and Theoretical Physics; ISSN 1063-7761;
; CODEN JTPHES; v. 127(3); p. 566-580

Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue