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All-Inorganic Hydrothermally Processed Semitransparent Sb2S3 Solar Cells with CuSCN as the Hole Transport Layer
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-1853-214X
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
Electrochemistry and Corrosion Laboratory, Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, 30-239 Krakow, Poland.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0001-7475-6394
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2024 (English)In: ACS Applied Energy Materials, E-ISSN 2574-0962, Vol. 7, no 4, p. 1421-1432Article in journal (Refereed) Published
Abstract [en]

Published by American Chemical Society.An inorganic wide-bandgap hole transport layer (HTL), copper(I) thiocyanate (CuSCN), is employed in inorganic planar hydrothermally deposited Sb2S3 solar cells. With excellent hole transport properties and uniform compact morphology, the solution-processed CuSCN layer suppresses the leakage current and improves charge selectivity in an n-i-p-type solar cell structure. The device without the HTL (FTO/CdS/Sb2S3/Au) delivers a modest power conversion efficiency (PCE) of 1.54%, which increases to 2.46% with the introduction of CuSCN (FTO/CdS/Sb2S3/CuSCN/Au). This PCE is a significant improvement compared with the previous reports of planar Sb2S3 solar cells employing CuSCN. CuSCN is therefore a promising alternative to expensive and inherently unstable organic HTLs. In addition, CuSCN makes an excellent optically transparent (with average transmittance >90% in the visible region) and shunt-blocking HTL layer in pinhole-prone ultrathin(<100 nm) semitransparent absorber layers grown by green and facile hydrothermal deposition. A semitransparent device is fabricated using an ultrathin Au layer (∼10 nm) with a PCE of 2.13% and an average visible transmittance of 13.7%.

Place, publisher, year, edition, pages
American Chemical Society , 2024. Vol. 7, no 4, p. 1421-1432
Keywords [en]
antimony sulfide solar cells, average visible transmittance, copper(I) thiocyanate, hole transport layer, hydrothermal deposition, semitransparent solar cells, thin film solar cells
National Category
Condensed Matter Physics
Research subject
Experimental Physics
Identifiers
URN: urn:nbn:se:ltu:diva-104466DOI: 10.1021/acsaem.3c02492Scopus ID: 2-s2.0-85184917687OAI: oai:DiVA.org:ltu-104466DiVA, id: diva2:1842829
Funder
Swedish Research Council, 2022-05024Knut and Alice Wallenberg FoundationThe Kempe Foundations
Note

Validerad;2024;Nivå 2;2024-03-06 (hanlid);

Funder: European Union−Next Generation EU Award (PE0000021);

Full text license: CC BY

Available from: 2024-03-06 Created: 2024-03-06 Last updated: 2024-03-06Bibliographically approved

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Kumar, PankajEriksson, MartinYou, ShujieVomiero, Alberto

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