P
Paul Fassl
Researcher at Karlsruhe Institute of Technology
Publications - 36
Citations - 1094
Paul Fassl is an academic researcher from Karlsruhe Institute of Technology. The author has contributed to research in topics: Perovskite (structure) & Engineering. The author has an hindex of 12, co-authored 22 publications receiving 606 citations. Previous affiliations of Paul Fassl include Heidelberg University.
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Journal ArticleDOI
Role of Microstructure in Oxygen Induced Photodegradation of Methylammonium Lead Triiodide Perovskite Films
Qing Sun,Paul Fassl,David Becker-Koch,Alexandra Bausch,Boris Rivkin,Sai Bai,Sai Bai,Paul E. Hopkinson,Henry J. Snaith,Yana Vaynzof +9 more
TL;DR: In this article, the degradation rate of methylammonium lead triiodide (MAPbI(3)) perovskite films upon exposure to light and oxygen was investigated.
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Two birds with one stone: dual grain-boundary and interface passivation enables >22% efficient inverted methylammonium-free perovskite solar cells
Saba Gharibzadeh,Paul Fassl,Ihteaz M. Hossain,Pascal Rohrbeck,Markus Frericks,Moritz Schmidt,Motiur Rahman Khan,Tobias Abzieher,Bahram Abdollahi Nejand,Fabian Schackmar,Osbel Almora,Thomas Feeney,Roja Singh,Dirk Fuchs,Uli Lemmer,Jan P. Hofmann,Stefan A. L. Weber,Ulrich W. Paetzold +17 more
TL;DR: In this article, a dual passivation strategy using the long chain alkylammonium salt phenethylamium chloride (PEACl) both as an additive and for surface treatment to simultaneously passivate the grain boundaries and the perovskite/C60 interface was introduced.
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High performance planar perovskite solar cells by ZnO electron transport layer engineering
Qingzhi An,Paul Fassl,Yvonne J. Hofstetter,David Becker-Koch,Alexandra Bausch,Paul E. Hopkinson,Yana Vaynzof +6 more
TL;DR: In this paper, the authors modify the ZnO layer by incorporating Cs or Li dopants in its bulk and depositing a self-assembled monolayer on its surface.
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Fractional deviations in precursor stoichiometry dictate the properties, performance and stability of perovskite photovoltaic devices
Paul Fassl,Vincent Lami,Alexandra Bausch,Zhiping Wang,Matthew T. Klug,Henry J. Snaith,Yana Vaynzof +6 more
TL;DR: In this article, the authors demonstrate that fractional deviations in the precursor solution stoichiometry can cause significant changes in the properties of the perovskite layer as well as in the performance and stability of perovsite photovoltaic devices.
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2D/3D Heterostructure for Semitransparent Perovskite Solar Cells with Engineered Bandgap Enables Efficiencies Exceeding 25% in Four‐Terminal Tandems with Silicon and CIGS
Saba Gharibzadeh,Ihteaz M. Hossain,Paul Fassl,Bahram Abdollahi Nejand,Tobias Abzieher,Moritz Schultes,Erik Ahlswede,Philip Jackson,Michael Powalla,Sören Schäfer,Michael Rienäcker,Tobias Wietler,Robby Peibst,Uli Lemmer,Bryce S. Richards,Ulrich W. Paetzold +15 more
TL;DR: In this paper, a 2D/3D perovskite heterostructure passivation is employed for double-cation wide-bandgap PSCs with engineered bandgap, which results in improved stabilized PCEs and a strong enhancement in open-circuit voltages of around 45 mV compared to reference devices for all investigated bandgaps.