M
Michael Grätzel
Researcher at École Polytechnique Fédérale de Lausanne
Publications - 1476
Citations - 335642
Michael Grätzel is an academic researcher from École Polytechnique Fédérale de Lausanne. The author has contributed to research in topics: Dye-sensitized solar cell & Perovskite (structure). The author has an hindex of 248, co-authored 1423 publications receiving 303599 citations. Previous affiliations of Michael Grätzel include University of California, Berkeley & Siemens Energy Sector.
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Nanocrystalline Mesoporous Strontium Titanate as Photoelectrode Material for Photosensitized Solar Devices: Increasing Photovoltage through Flatband Potential Engineering
TL;DR: In this article, it was shown that low dye loading and possibly suboptimal dye−oxide interactions can be the cause for the relatively low photocurrents in the nanocrystalline SrTiO3 system.
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Optimization of distyryl-Bodipy chromophores for efficient panchromatic sensitization in dye sensitized solar cells
Safacan Kolemen,O. Altan Bozdemir,Yusuf Cakmak,Gokhan Barin,Sule Erten-Ela,Magdalena Marszalek,Jun-Ho Yum,Shaik M. Zakeeruddin,Mohammad Khaja Nazeeruddin,Michael Grätzel,Engin U. Akkaya +10 more
TL;DR: In this paper, a series of derivatives designed to address earlier problems in Bodipy-sensitized solar cells were reported, achieving an overall efficiency of a modest 2.46% but panchromatic nature of the dyes is quite impressive.
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Dynamics of photogenerated holes in nanocrystalline α-Fe2O3 electrodes for water oxidation probed by transient absorption spectroscopy
Stephanie R. Pendlebury,Monica Barroso,Alexander J. Cowan,Kevin Sivula,Junwang Tang,Michael Grätzel,David R. Klug,James R. Durrant +7 more
TL;DR: Transient absorption spectroscopy on the μs-s time scale is used to monitor the yield and decay dynamics of photogenerated holes in nanocrystalline hematite photoanodes and results in the generation of long-lived photoholes.
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The 2,2,6,6‐Tetramethyl‐1‐piperidinyloxy Radical: An Efficient, Iodine‐ Free Redox Mediator for Dye‐Sensitized Solar Cells
TL;DR: In this paper, the authors present a Web of Science Record created on 2008-09-29, modified on 2017-05-12, with the purpose of improving the quality of web of science records.
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Rate law analysis of water oxidation on a hematite surface
Florian Le Formal,Ernest Pastor,S. David Tilley,Camilo A. Mesa,Stephanie R. Pendlebury,Michael Grätzel,James R. Durrant +6 more
TL;DR: This study provides direct evidence for the multihole catalysis of water oxidation by hematite, and demonstrates the hole accumulation level required to achieve this, leading to key insights both for reaction mechanism and strategies to enhance function.