M
Mark E. Ziffer
Researcher at Columbia University
Publications - 22
Citations - 3661
Mark E. Ziffer is an academic researcher from Columbia University. The author has contributed to research in topics: Perovskite (structure) & Thin film. The author has an hindex of 12, co-authored 21 publications receiving 2876 citations. Previous affiliations of Mark E. Ziffer include University of Washington.
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Journal ArticleDOI
Impact of microstructure on local carrier lifetime in perovskite solar cells
Dane W. deQuilettes,Sarah M. Vorpahl,Samuel D. Stranks,Hirokazu Nagaoka,Giles E. Eperon,Mark E. Ziffer,Henry J. Snaith,David S. Ginger +7 more
TL;DR: The grain boundaries were dimmer and exhibited faster nonradiative decay, and energy-dispersive x-ray spectroscopy showed a positive correlation between chlorine concentration and regions of brighter PL, whereas PL imaging revealed that chemical treatment with pyridine could activate previously dark grains.
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Photoluminescence Lifetimes Exceeding 8 μs and Quantum Yields Exceeding 30% in Hybrid Perovskite Thin Films by Ligand Passivation
Dane W. deQuilettes,Susanne Koch,Sven Burke,Rajan K. Paranji,Alfred J. Shropshire,Mark E. Ziffer,David S. Ginger +6 more
TL;DR: In this paper, the effects of a series of postdeposition ligand treatments on the photoluminescence (PL) of polycrystalline methylammonium lead triiodide perovskite thin films were studied.
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Hybrid perovskite films approaching the radiative limit with over 90% photoluminescence quantum efficiency
Ian L. Braly,Dane W. deQuilettes,Luis M. Pazos-Outón,Sven Burke,Mark E. Ziffer,David S. Ginger,Hugh W. Hillhouse +6 more
TL;DR: In this article, the authors characterize both external and internal photoluminescence quantum efficiency and quasi-Fermi-level splitting of surface-treated hybrid perovskite (CH3NH3PbI3) thin films.
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The Potential of Multijunction Perovskite Solar Cells
Maximilian T. Hörantner,Tomas Leijtens,Mark E. Ziffer,Giles E. Eperon,M. Greyson Christoforo,Michael D. McGehee,Henry J. Snaith +6 more
TL;DR: In this article, the authors combine optical and electrical models using experimental inputs to evaluate the feasible performances of all-perovskite double-junction (2PJ), triple-Junction (3PJ) and perovsite polysilicon triple-junctions (2PSJ) solar cells.
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Electrochemical strain microscopy probes morphology-induced variations in ion uptake and performance in organic electrochemical transistors
Rajiv Giridharagopal,Lucas Q. Flagg,Jeffrey S. Harrison,Mark E. Ziffer,Jonathan W. Onorato,Christine K. Luscombe,David S. Ginger +6 more
TL;DR: ESM data indicate that nanoscale variations in ion uptake are associated with local changes in polymer packing that may impede ion transport to different extents within the same macroscopic film and can inform future materials optimization.