Optimizing perovskite silicon tandem solar cells for highest efficiency and energy yield (Conference Presentation)

Jan Christoph Goldschmidt; Patricia S. C. Schulze; Alexander J. Bett; Özde Kabakli; Kristina M. Winkler; Ludmila Cojocaru; Martin Bivour; Benedikt Bläsi; Hubert Hauser; Clarissa Hofmann; Armin Richter; Nico Tucher; Leonard Tutsch; Qinxin Zhang; Martin Hermle; Stefan W. Glunz

doi:10.1117/12.2559276

1 April 2020 Optimizing perovskite silicon tandem solar cells for highest efficiency and energy yield (Conference Presentation)

Jan Christoph Goldschmidt, Patricia S. C. Schulze, Alexander J. Bett, Özde Kabakli, Kristina M. Winkler, Ludmila Cojocaru, Martin Bivour, Benedikt Bläsi, Hubert Hauser, Clarissa Hofmann, Armin Richter, Nico Tucher, Leonard Tutsch, Qinxin Zhang, Martin Hermle, Stefan W. Glunz

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Proceedings Volume 11366, Photonics for Solar Energy Systems VIII; 1136603 (2020) https://doi.org/10.1117/12.2559276
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

Perovskite silicon tandem solar cells can exceed the efficiency limit of 29.4% of single junction silicon solar cells, with comparably low additional costs for depositing the layers for the perovskite solar cell. Hence, they are an attractive option to further decrease the costs of photovoltaic electricity generation. We present, how by optimizing perovskite absorber composition, choosing adequate carrier selective contact layers, introducing surface passivation and optimizing the individual layer thicknesses solar cell efficiencies above 25% can be realized experimentally. Furthermore, we discuss different options for reducing front surface reflection by anti-reflection coatings, structured foils and deposition on textured silicon wafers and their impact both on solar cell efficiency as well as on the yearly energy yield. Deposition on textured silicon wafers promises highest energy yield. Hence, we show how perovskite absorbers can be deposited on such substrates by either co-evaporation or hybrid processing combining evaporation and subsequent wet-chemical processing. By bottom up cost calculations we finally show how and under which conditions perovskite silicon tandem solar cells can yield an economic advantage.

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Jan Christoph Goldschmidt, Patricia S. C. Schulze, Alexander J. Bett, Özde Kabakli, Kristina M. Winkler, Ludmila Cojocaru, Martin Bivour, Benedikt Bläsi, Hubert Hauser, Clarissa Hofmann, Armin Richter, Nico Tucher, Leonard Tutsch, Qinxin Zhang, Martin Hermle, and Stefan W. Glunz "Optimizing perovskite silicon tandem solar cells for highest efficiency and energy yield (Conference Presentation)", Proc. SPIE 11366, Photonics for Solar Energy Systems VIII, 1136603 (1 April 2020); https://doi.org/10.1117/12.2559276

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KEYWORDS

Perovskite

Silicon

Solar energy

Tandem solar cells

Energy efficiency

Solar cells

Semiconducting wafers

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