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Drying Dynamics of Solution‐Processed Perovskite Thin‐Film Photovoltaics: In Situ Characterization, Modeling, and Process Control

Ternes, Simon 1,2,3; Börnhorst, Tobias 2; Schwenzer, Jonas A. 1; Hossain, Ihteaz M. 1,3; Abzieher, Tobias 1; Mehlmann, Waldemar 2; Lemmer, Uli 1,3; Scharfer, Philip 2; Schabel, Wilhelm 2; Richards, Bryce S. ORCID iD icon 1,3; Paetzold, Ulrich W. ORCID iD icon 1,3
1 Lichttechnisches Institut (LTI), Karlsruher Institut für Technologie (KIT)
2 Institut für Thermische Energietechnik und Sicherheit (ITES), Karlsruher Institut für Technologie (KIT)
3 Institut für Mikrostrukturtechnik (IMT), Karlsruher Institut für Technologie (KIT)


A key challenge for the commercialization of perovskite photovoltaics is the transfer of high‐quality spin coated perovskite thin‐films toward applying industry‐scale thin‐film deposition techniques, such as slot‐die coating, spray coating, screen printing, or inkjet printing. Due to the complexity of the formation of polycrystalline perovskite thin‐films from the precursor solution, efficient strategies for process transfer require advancing the understanding of the involved dynamic processes. This work investigates the fundamental interrelation between the drying dynamics of the precursor solution thin‐film and the quality of the blade coated polycrystalline perovskite thin‐films. Precisely defined drying conditions are established using a temperature‐stabilized drying channel purged with a laminar flow of dry air. The dedicated channel is equipped with laser reflectometry at multiple probing positions, allowing for in situ monitoring of the perovskite solution thin‐film thickness during the drying process. Based on the drying dynamics as measured at varying drying parameters, namely at varying temperature and laminar air flow velocity, a quantitative model on the drying of perovskite thin‐films is derived. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000097909
Veröffentlicht am 04.11.2019
DOI: 10.1002/aenm.201901581
Zitationen: 33
Web of Science
Zitationen: 32
Zitationen: 38
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mikrostrukturtechnik (IMT)
Institut für Thermische Verfahrenstechnik (TVT)
Universität Karlsruhe (TH) – Interfakultative Einrichtungen (Interfakultative Einrichtungen)
Karlsruhe School of Optics & Photonics (KSOP)
Lichttechnisches Institut (LTI)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 1614-6832, 1614-6840
KITopen-ID: 1000097909
HGF-Programm 43.22.03 (POF III, LK 01) Printed Materials and Systems
Erschienen in Advanced energy materials
Verlag Wiley-VCH Verlag
Band 9
Heft 39
Seiten Article no: 1901581
Vorab online veröffentlicht am 27.08.2019
Nachgewiesen in Dimensions
Web of Science
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