20%-efficient polycrystalline Cd(Se,Te) thin-film solar cells with compositional gradient near the front junction

Deng-Bing Li; Sandip S. Bista; Rasha A. Awni; Sabin Neupane; Abasi Abudulimu; Xiaoming Wang; Kamala K. Subedi; Manoj K. Jamarkattel; Adam B. Phillips; Michael J. Heben; Jonathan D. Poplawsky; David A. Cullen; Randy J. Ellingson; Yanfa Yan

doi:10.1038/s41467-022-35442-8

Nature Communications (Dec 2022)

20%-efficient polycrystalline Cd(Se,Te) thin-film solar cells with compositional gradient near the front junction

Deng-Bing Li,
Sandip S. Bista,
Rasha A. Awni,
Sabin Neupane,
Abasi Abudulimu,
Xiaoming Wang,
Kamala K. Subedi,
Manoj K. Jamarkattel,
Adam B. Phillips,
Michael J. Heben,
Jonathan D. Poplawsky,
David A. Cullen,
Randy J. Ellingson,
Yanfa Yan

Affiliations

Deng-Bing Li: Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo
Sandip S. Bista: Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo
Rasha A. Awni: Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo
Sabin Neupane: Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo
Abasi Abudulimu: Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo
Xiaoming Wang: Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo
Kamala K. Subedi: Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo
Manoj K. Jamarkattel: Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo
Adam B. Phillips: Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo
Michael J. Heben: Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo
Jonathan D. Poplawsky: Center for Nanophase Materials Sciences, Oak Ridge National Laboratory
David A. Cullen: Center for Nanophase Materials Sciences, Oak Ridge National Laboratory
Randy J. Ellingson: Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo
Yanfa Yan: Department of Physics and Astronomy, and Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo

DOI: https://doi.org/10.1038/s41467-022-35442-8
Journal volume & issue: Vol. 13, no. 1
pp. 1 – 8

Abstract

Read online

Bandgap gradient is a promising approach to improve the open-circuit voltage in thin film solar cells. Here, authors incorporate a Cd(O,S,Se,Te) region to realize the bandgap gradient at front interface and demonstrate Cd(Se,Te) solar cells with reduced recombination and a champion efficiency of 20.03%.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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