title: Overcoming the Interface Losses in Planar Heterojunction Perovskite-Based Solar Cells.
abstract: A scalable, hysteresis-free and planar architecture perovskite solar cell is presented, employing a flame spray synthesized low-temperature processed NiO (LT-NiO) as hole-transporting layer yielding efficiencies close to 18%. Importantly, it is found that LT-NiO boosts the limits of open-circuit voltages toward an impressive non-radiative voltage loss of 0.226 V only, whereas
  PSS suffers from significant large non-radiative recombination losses.
authors.affiliation: Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.|Erlangen Graduate School in Advanced Optical Technologies (SAOT), Paul-Gordan-Str.6, 91052, Erlangen, Germany.
authors.forename: Yi
authors.initials: Y
authors.lastname: Hou
authors.affiliation: Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.|Erlangen Graduate School in Advanced Optical Technologies (SAOT), Paul-Gordan-Str.6, 91052, Erlangen, Germany.
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
authors.affiliation: Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.
authors.forename: Derya
authors.initials: D
authors.lastname: Baran
authors.affiliation: Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.|Nanograde Ltd, Laubisruetistrasse 50, 8712, Staefa, Switzerland.
authors.forename: Tobias
authors.initials: T
authors.lastname: Stubhan
authors.affiliation: Nanograde Ltd, Laubisruetistrasse 50, 8712, Staefa, Switzerland.
authors.forename: Norman A
authors.initials: NA
authors.lastname: Luechinger
authors.affiliation: Nanograde Ltd, Laubisruetistrasse 50, 8712, Staefa, Switzerland.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Hartmeier
authors.affiliation: Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.
authors.forename: Moses
authors.initials: M
authors.lastname: Richter
authors.affiliation: Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.
authors.forename: Jie
authors.initials: J
authors.lastname: Min
authors.affiliation: Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.
authors.forename: Shi
authors.initials: S
authors.lastname: Chen
authors.affiliation: Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.
authors.forename: Cesar Omar Ramirez
authors.initials: CO
authors.lastname: Quiroz
authors.affiliation: Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.
authors.forename: Ning
authors.initials: N
authors.lastname: Li
authors.affiliation: Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.|Erlangen Graduate School in Advanced Optical Technologies (SAOT), Paul-Gordan-Str.6, 91052, Erlangen, Germany.
authors.forename: Hong
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Heumueller
authors.affiliation: Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.
authors.forename: Gebhard J
authors.initials: GJ
authors.lastname: Matt
authors.affiliation: Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.
authors.forename: Andres
authors.initials: A
authors.lastname: Osvet
authors.affiliation: Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.
authors.forename: Karen
authors.initials: K
authors.lastname: Forberich
authors.affiliation: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
authors.forename: Zhi-Guo
authors.initials: ZG
authors.lastname: Zhang
authors.affiliation: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
authors.forename: Yongfang
authors.initials: Y
authors.lastname: Li
authors.affiliation: Department of Materials Science and Engineering, Institute of Micro- and Nanostructure Research and Center for Nanoanalysis and Electron Microscopy (CENEM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 6, 91058, Erlangen, Germany.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Winter
authors.affiliation: Department of Materials Science and Engineering, Institute of Micro- and Nanostructure Research and Center for Nanoanalysis and Electron Microscopy (CENEM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 6, 91058, Erlangen, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Schweizer
authors.affiliation: Department of Materials Science and Engineering, Institute of Micro- and Nanostructure Research and Center for Nanoanalysis and Electron Microscopy (CENEM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 6, 91058, Erlangen, Germany.
authors.forename: Erdmann
authors.initials: E
authors.lastname: Spiecker
authors.affiliation: Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.|Bavarian Center for Applied Energy Research (ZAE Bayern), Haberstr. 2a, 91058, Erlangen, Germany.
authors.forename: Christoph J
authors.initials: CJ
authors.lastname: Brabec
keywords: low temperature processing; nickel oxide; non-radiative voltage loss; perovskite solar cells