Exciton and charge dynamics in evaporated organic solar cells and photodetectors
JAMES DURRANT a b
a Department of Chemistry and Centre for Processable Electronics, Imperial College London, London, W12 0BZ, UK
b Department of Materials Science and Engineering, University of Swansea, Swansea, UK
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP24)
Tokyo, Japan, 2024 January 21st - 23rd
Organizers: Qing Shen and James Ryan
Keynote, JAMES DURRANT, presentation 048
DOI: https://doi.org/10.29363/nanoge.iperop.2024.048
Publication date: 18th October 2023

Vacuum processing is the most established pathway to the commercial production of organic solar cells. However vacuum processed devices currently exhibit much lower device efficiencies than solution processed devices. Despite their commercial success, the underlying charge carrier dynamics determining the efficiency of evaporated, vacuum processed organic solars have received far less attention than those solution processed devices. In my talk, I will focus on these charge carrier dynamics in high performance vacuum processed organic solar cells and photodetectors, and how these compare with those observed in solution processed devices. These studies will include consideration of exciton separation, charge transfer states, charge carrier mobility and non-geminate recombination losses. Studies will address and contrast both planar and bulk heterojuctions devices, as well as the effect of annealing on film nanomorphology. A key consideration will be consideration of molecular energetics in impacting these kinetics, including the impact of molecular quadrupoles and octupoles.

 

 

 

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