Interface Optimization via Fullerene Blends Enables Open‐Circuit Voltages of 1.35 V in CH3NH3Pb(I0.8Br0.2)3 Solar Cells
Johanna Siekmann a
a Forschungszentrum Jülich, IEK5-Photovoltaics, Jülich, Germany
Proceedings of 13th Conference on Hybrid and Organic Photovoltaics (HOPV21)
Online, Spain, 2021 May 24th - 28th
Organizers: Marina Freitag, Feng Gao and Sam Stranks
Poster, Johanna Siekmann, 185
Publication date: 11th May 2021

The biggest challenge for wide bandgap perovskite solar cells (PSC) is to reduce nonradiative recombination to generate high open-circuit voltages. We exceed Voc of 1.35 V by optimization of the electron transport layer via the use of different fullerenes and fullerene blends. We show that a good interface and improved energy level alignment can increase the power conversion efficiency up to 18.9%.

© Fundació Scito
We use our own and third party cookies for analysing and measuring usage of our website to improve our services. If you continue browsing, we consider accepting its use. You can check our Cookies Policy in which you will also find how to configure your web browser for the use of cookies. More info