Enhancing the Performance of Blade-Coated Perovskite/Silicon Tandems via Molecular Doping and Interfacial Energy Alignment

by Anand S. Subbiah, Luis V. Torres Merino, Anil R.Pininti, Vladyslav Hnapovskyi, Subhashri Mannar, Erkan Aydin, Arsalan Razzaq, Thomas G. Allen, Stefaan De Wolf

Letter Year: 2024 DOI: https://doi.org/10.1021/acsenergylett.4c00070

Bibliography

S. Subbiah, A., Torres Merino, L.V., R. Pininti, A., Hnapovskyi, V., Mannar, S., Aydin, E., Razzaq, A., G. Allen, T., De Wolf, S.

Abstract

We improve the performance of blade-coated perovskite/silicon tandem solar cells using two approaches. First, we introduce F6TCNNQ as a molecular dopant in the precursor ink to enable micrometer-thick perovskite films, compatible with textured silicon bottom cells. Second, we minimize the energy mismatch between the hole selective contact and perovskite, resulting in a champion tandem efficiency of 29.7%.

Keywords

Layers Perovskites Power conversion efficiency Solar cells Thickness