Organic photovoltaics with efficiencies exceeding 20%
Thomas Anthopoulos a
a Photon Science Institute, University of Manchester, Oxford Road, Manchester M13 9PL, UK
Materials for Sustainable Development Conference (MATSUS)
Proceedings of MATSUS Spring 2025 Conference (MATSUSSpring25)
Sustainable org semiconductors for light to current applications - #SusOrg
Sevilla, Spain, 2025 March 3rd - 7th
Organizers: Nicola Gasparini and Julianna Panidi
Invited Speaker, Thomas Anthopoulos, presentation 448
DOI: https://doi.org/10.29363/nanoge.matsusspring.2025.448
Publication date: 16th December 2024

The rapid advances in increasing the power conversion efficiency (PCE) of organic photovoltaics (OPVs) have been mainly driven by advancements in new materials and the reduction of performance losses associated with traditional cell structures. As the PCE values of state-of-the-art OPVs have now exceeded 20%, the importance of cell engineering—including the active layer, interfaces, and light management—becomes even more crucial and, in most cases, determines the ultimate cell performance. In this talk, I will discuss our recent efforts to increase the PCE of OPVs to well beyond 20%. I will demonstrate how the use of engineered charge-extracting interlayers can help boost the overall performance of the cells as well as their operating lifetime. Moreover, I will highlight our latest advancements in utilizing molecular dopants to enhance the PCE and show how their combination with innovative interlayers and appropriate cell structures can improve material utilization and overall device sustainability, all while maintaining record levels of PCE.

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