Perovskite Tandem Solar Cells (Invited)
Anita Ho-Baillie a
a The University of Sydney, Australia
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP23)
Kobe, Japan, 2023 January 22nd - 24th
Organizers: Seigo Ito, Hideo Ohkita and Atsushi Wakamiya
Invited Speaker, Anita Ho-Baillie, presentation 021
DOI: https://doi.org/10.29363/nanoge.iperop.2023.021
Publication date: 21st November 2022

I will give a quick overview of recent progress and future prospects of perovskite tandem solar cells reported in the literature. I will then talk about some of the research activities in my group. Specifically, We will discuss how our perovskite-Si tandem cell monolithic integration strategy has evolved from interface-layer-free design to ultra-thin interface layer design due to the switch from homo-junction Si cells to hetero-junction Si cells for the bottom stack. Recent results include 27.2% power conversion efficiency with a fill factor of 82.4% on 1.0 cm2; 24.2 % efficient 11.8 cm2 cell; and 21.1 % efficient 65.1 cm2 (~4-inch round) cell. I will also talk about the evolution from p-i-n to n-i-p tandem demonstrations. In addition, I will present our results of 20% 3-junction tandem and recent innovations on low-bandgap and high-bandgap perovskites with very high fill factors for the demonstration of perovskite-perovskite tandems with very good yield.           

The projects are supported by John Hooke Chair of Nanoscience Postgraduate Research Scholarship, by the Australian Government through the Australian Renewable Energy Agency (ARENA) and through the Australian Research Council (ARC) via Future Fellowship (FT210100210). Finally, we acknowledge the scientific and technical assistance provided by the Research & Prototype Foundry (RPF) and Sydney Analytical which part of the Core Research Facility at the University of Sydney. RPF is part of the Australian National Fabrication Facility.

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