High-Performance Perovskite Single-Junction and Textured Perovskite/Silicon Tandem Solar Cells via Slot-Die Coating

by Anand S. Subbiah, Furkan H. Isikgor, Calvyn T. Howells, Michaele De Bastiani, Jiang Liu, Erkan Aydin, Francesco Furlan, Thomas G Allen, Fuzong Xu, Shynggys Zhumagali, Sjoerd Hoogland, Edward H. Sargent, Iain McCulloch, Stefaan De Wolf

Letter Year: 2020 DOI: https://doi.org/10.1021/acsenergylett.0c01297

Bibliography

Subbiah, A. S., Isikgor, F. H., Howells, C. T., De Bastiani, M., Liu, J., Aydin, E., Furlan, F., Zhumagali, S., Hoogland, S., Sargent, E.H., McCulloch, I., De Wolf, S. (2020). High-Performance Perovskite Single-Junction and Textured Perovskite/Silicon Tandem Solar Cells via Slot-Die Coating. ACS Energy Letters.

Extra Information

This study, published in ACS Energy Letters, reports one of the highest PCE for single-junction devices fabricated by lost die coating as well as showing the first example of slot-die coated perovskite/silicon tandems on textured interfaces.

Abstract

In this work we report perovskite solar cells in the planar p-i-n configuration based on single-step, anti-solvent free, low-temperature (70 oC) slot-die coated methylammonium lead tri-iodide (MAPbI3). The devices are fabricated on hydrophobic PTAA surfaces, using key strategies such as solvent engineering, enhanced ink-substrate dynamics, and surface passivation, enabling a power conversion efficiency (PCE) of 21.8%. We also adapted the technique to achieve the first slot-die coated perovskite/silicon monolithic 2-terminal tandems, achieving a PCE of 23.8% utilizing a textured silicon bottom cell.

Keywords

slot-die coating perovskite solar cells perovskite silicon tandems