KIT | KIT-Bibliothek | Impressum | Datenschutz

Scalable two-terminal all-perovskite tandem solar modules with a 19.1% efficiency

Abdollahi Nejand, Bahram 1,2; Ritzer, David B. 1,2; Hu, Hang ORCID iD icon 1,2; Schackmar, Fabian 1,2; Moghadamzadeh, Somayeh 1,2; Feeney, Thomas 1,2; Singh, Roja ORCID iD icon 1,2; Laufer, Felix 1,2; Schmager, Raphael 1,2; Azmi, Raheleh 3; Kaiser, Milian 2; Abzieher, Tobias 1; Gharibzadeh, Saba 1,2; Ahlswede, Erik; Lemmer, Uli 1,2; Richards, Bryce S. ORCID iD icon 1,2; Paetzold, Ulrich W. ORCID iD icon 1,2
1 Lichttechnisches Institut (LTI), Karlsruher Institut für Technologie (KIT)
2 Institut für Mikrostrukturtechnik (IMT), Karlsruher Institut für Technologie (KIT)
3 Institut für Angewandte Materialien – Energiespeichersysteme (IAM-ESS), Karlsruher Institut für Technologie (KIT)


Monolithic all-perovskite tandem photovoltaics promise to combine low-cost and high-efficiency solar energy harvesting with the advantages of all-thin-film technologies. To date, laboratory-scale all-perovskite tandem solar cells have only been fabricated using non-scalable fabrication techniques. In response, this work reports on laser-scribed all-perovskite tandem modules processed exclusively with scalable fabrication methods (blade coating and vacuum deposition), demonstrating power conversion efficiencies up to 19.1% (aperture area, 12.25 cm2; geometric fill factor, 94.7%) and stable power output. Compared to the performance of our spin-coated reference tandem solar cells (efficiency, 23.5%; area, 0.1 cm2), our prototypes demonstrate substantial advances in the technological readiness of all-perovskite tandem photovoltaics. By means of electroluminescence imaging and laser-beam-induced current mapping, we demonstrate the homogeneous current collection in both subcells over the entire module area, which explains low losses (<5%rel) in open-circuit voltage and fill factor for our scalable modules.

Verlagsausgabe §
DOI: 10.5445/IR/1000148780
Veröffentlicht am 07.09.2022
DOI: 10.1038/s41560-022-01059-w
Zitationen: 69
Zitationen: 73
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Energiespeichersysteme (IAM-ESS)
Institut für Mikrostrukturtechnik (IMT)
Karlsruhe School of Optics & Photonics (KSOP)
Lichttechnisches Institut (LTI)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISSN: 2058-7546
KITopen-ID: 1000148780
HGF-Programm 38.01.03 (POF IV, LK 01) Cell Design and Development
Weitere HGF-Programme 38.01.04 (POF IV, LK 01) Modules, Stability, Performance and Specific Applications
Erschienen in Nature Energy
Verlag Nature Research
Band 7
Seiten 620–630
Vorab online veröffentlicht am 07.07.2022
Schlagwörter 2021-026-030212 ToF-SIMS
Nachgewiesen in Scopus
Web of Science
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page