Proceedings of International Conference on Perovskite and Organic Photovoltaics and Optoelectronics (IPEROP19)
DOI: https://doi.org/10.29363/nanoge.iperop.2019.081
Publication date: 23rd October 2018
The kinetics of charge generation, separation and recombination are critical to the function of both organic and perovskite solar cells. In my talk, I will address some of the factors determining these kinetics in both organic and perovskite solar cells, and how these impact upon device performance, discussing lessons learnt in particular from transient optical and optoelectronic measurements. I will start by introducing some of the key current challenges and opportunities for these devices. In organic solar cells, I will then go on to focus on a comparison of the kinetics of fullerene and non-fullerene acceptors, and the role of interfacial charge transfer states in limiting performance. For perovskite solar cells, I will focus on interfacial charge transfer and recombination in planar p-i-n MAPI3 based devices. The impact of tail states on charge carrier recombination, and thus on device performance, will be addressed for both devices. Throughout my talk, I will try to highlight the similarities and difference between these two classes of solar cells.