The impact of driving force on electron transfer rates in photovoltaic donor-acceptor blends

The impact of driving force on electron transfer rates in photovoltaic donor-acceptor blends

© 2015 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 27(2015), 15 vom: 17. Apr., Seite 2496-500
1. Verfasser: Ward, Alexander J (VerfasserIn)
Weitere Verfasser: Ruseckas, Arvydas, Kareem, Mohanad Mousa, Ebenhoch, Bernd, Serrano, Luis A, Al-Eid, Manal, Fitzpatrick, Brian, Rotello, Vincent M, Cooke, Graeme, Samuel, Ifor D W
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article PTB7 charge generation excitonic solar cells reorganization energy
Beschreibung
Zusammenfassung:© 2015 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
The effect of acceptor energy level on electron transfer rate in blends of the polymer solar-cell material poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b']dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl]] (PTB7) is studied using time-resolved fluorescence. Fast electron transfer in less than 2 ps is observed for a driving force between 0.2 and 0.6 eV and the electron transfer is slower outside this range. This dependence is described by Marcus theory with a reorganization energy of ≈0.4 eV
Beschreibung:Date Completed 05.06.2015
Date Revised 01.10.2020
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.201405623