Thermally-Induced Degradation in PM6:Y6-Based Bulk Heterojunction Organic Solar Cells

S. Alam, H. Aldosari, C. E. Petoukhoff, T. Váry, W. Althobaiti, M. Alqurashi, H. Tang, J. I. Khan, V. Nádaždy, P. Müller-Buschbaum, G. C. Welch, F. Laquai

Adv. Funct. Mater. 2023, 2308076. https://doi.org/10.1002/adfm.202308076

This paper investigates the impact of thermal annealing on PM6:Y6-based organic solar cells, focusing on performance degradation due to structural and morphological changes at elevated temperatures. It finds that VOC and FF significantly decrease with annealing above 140°C due to altered charge transport and extraction.

How Setfos was used

Using SETFOS software, the study simulates device performance, correlating optical-electrical properties with device parameters to understand the degradation mechanisms and guide future improvements.

How Paios was used

Paios was used to measure transient photocurrent, photo-voltage, and charge extraction properties, providing insights into charge generation, recombination, and extraction mechanisms, helping to understand the performance drop at elevated annealing temperatures.