Issue 10, 2020

Learning from existing photovoltaic technologies to identify alternative perovskite module designs

Abstract

Perovskite solar cells have now become the most efficient of all multicrystalline thin film photovoltaic technologies, reaching 25.2% in 2019. This outstanding figure of merit has only been achieved on small lab-scale devices, with significantly lower performance when processed on larger more industrially relevant substrate sizes. Perovskite modules, connecting several smaller area cells together, are commonly demonstrated with a superstrate monolithic interconnection method. However, several other module designs exist and remain largely unexplored by the perovskite community. In this work, we review and highlight those alternatives and discuss their advantages and limitations. We propose that a singulated substrate-oriented module design, using metallic substrates, could provide a quicker path to seeing highly efficient, lightweight, and flexible perovskite modules on the market, while mitigating near-term technical risks. As an experimental starting-point towards this design, we demonstrate a substrate-oriented all-perovskite 2-terminal tandem with 18% efficiency.

Graphical abstract: Learning from existing photovoltaic technologies to identify alternative perovskite module designs

Article information

Article type
Perspective
Submitted
15 Jun 2020
Accepted
17 Aug 2020
First published
17 Aug 2020

Energy Environ. Sci., 2020,13, 3393-3403

Author version available

Learning from existing photovoltaic technologies to identify alternative perovskite module designs

J. Werner, C. C. Boyd, T. Moot, E. J. Wolf, R. M. France, S. A. Johnson, M. F. A. M. van Hest, J. M. Luther, K. Zhu, J. J. Berry and M. D. McGehee, Energy Environ. Sci., 2020, 13, 3393 DOI: 10.1039/D0EE01923B

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