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Laminated Perovskite Photovoltaics: Enabling Novel Layer Combinations and Device Architectures

Schmager, Raphael; Roger, Julie; Schwenzer, Jonas A.; Schackmar, Fabian; Abzieher, Tobias; Malekshahi Byranvand, Mahdi; Abdollahi Nejand, Bahram; Worgull, Matthias; Richards, Bryce S.; Paetzold, Ulrich W.

High‐efficiency perovskite‐based solar cells can be fabricated via either solution‐processing or vacuum‐based thin‐film deposition. However, both approaches limit the choice of materials and the accessible device architectures, due to solvent incompatibilities or possible layer damage by vacuum techniques. To overcome these limitations, the lamination of two independently processed half‐stacks of the perovskite solar cell is presented in this work. By laminating the two half‐stacks at an elevated temperature (≈90 °C) and pressure (≈50 MPa), the polycrystalline perovskite thin‐film recrystallizes and the perovskite/charge transport layer (CTL) interface forms an intimate electrical contact. The laminated perovskite solar cells with tin oxide and nickel oxide as CTLs exhibit power conversion efficiencies of up to 14.6%. Moreover, they demonstrate long‐term and high‐temperature stability at temperatures of up to 80 °C. This freedom of design is expected to access both novel device architectures and pairs of CTLs that remain usually inaccessible.

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Verlagsausgabe §
DOI: 10.5445/IR/1000105051
Veröffentlicht am 19.07.2020
DOI: 10.1002/adfm.201907481
Zitationen: 5
Web of Science
Zitationen: 5
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mikrostrukturtechnik (IMT)
Lichttechnisches Institut (LTI)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 1616-301X, 1616-3028
KITopen-ID: 1000105051
HGF-Programm 43.23.04 (POF III, LK 01) Nanophotonics for Energy Conversion
Erschienen in Advanced functional materials
Verlag Wiley-VCH Verlag
Band 30
Heft 9
Seiten Art. Nr.: 1907481
Vorab online veröffentlicht am 09.01.2020
Nachgewiesen in Scopus
Web of Science
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