Charge-recombination processes in organic solar cells: the impact of charge-transfer states
(Conference Presentation)

Veaceslav Coropceanu

doi:10.1117/12.2237668

Translator Disclaimer

11 November 2016 Charge-recombination processes in organic solar cells: the impact of charge-transfer states (Conference Presentation)

Veaceslav Coropceanu

Author Affiliations +

Proceedings Volume 9923, Physical Chemistry of Interfaces and Nanomaterials XV; 992306 (2016) https://doi.org/10.1117/12.2237668
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

We study the role of electron-vibration coupling, electronic polarization, molecular packing, system size and electron delocalization on the nature of the charge-transfer states in model donor-acceptor systems. The morphologies we consider range from a bilayer with flat interface to a bilayer with rough interface and bulk heterojunctions with coarse and fine intercalated domains of donor and acceptor molecules. The implications of the charge-transfer states, active material morphology, density of states and charge carrier concentration on non-geminate recombination kinetics is investigated by means of a three-dimensional reaction-diffusion lattice model with the charge carrier hopping rate described by the Miller-Abrahams formalism.

Conference Presentation

Citation Download Citation

Veaceslav Coropceanu "Charge-recombination processes in organic solar cells: the impact of charge-transfer states (Conference Presentation)", Proc. SPIE 9923, Physical Chemistry of Interfaces and Nanomaterials XV, 992306 (11 November 2016); https://doi.org/10.1117/12.2237668

ACCESS THE FULL ARTICLE