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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Journal ArticleDOI
Time-dependent density functional theory investigations on the excited states of Ru(II)-dye-sensitized TiO2 nanoparticles: the role of sensitizer protonation.
Filippo De Angelis,Simona Fantacci,Annabella Selloni,Mohammad Khaja Nazeeruddin,Michael Grätzel +4 more
TL;DR: This study confirms an indirect electron injection mechanism for Ru(II) dyes onTiO2 and indicates a remarkable effect of dye protonation on the electronic properties of N719-sensitized TiO2 nanoparticles.
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An Optically Transparent Iron Nickel Oxide Catalyst for Solar Water Splitting
Carlos G. Morales-Guio,Matthew T. Mayer,Aswani Yella,Aswani Yella,S. David Tilley,S. David Tilley,Michael Grätzel,Xile Hu +7 more
TL;DR: A novel method for the deposition of an optically transparent amorphous iron nickel oxide oxygen evolution electrocatalyst that enables the preparation of a stable hematite/perovskite solar cell tandem device, which performs unassisted water splitting.
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The effect of illumination on the formation of metal halide perovskite films
Amita Ummadisingu,Ludmilla Steier,Ji-Youn Seo,Taisuke Matsui,Antonio Abate,Wolfgang Tress,Michael Grätzel +6 more
TL;DR: It is shown that light has a strong influence on the rate of perovskite formation and on film morphology in both of the main deposition methods currently used: sequential deposition and the anti-solvent method.
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Hydrogen evolution from water induced by visible light mediated by redox catalysis
John Kiwi,Michael Grätzel +1 more
TL;DR: In this article, the first observations of the dynamics of intervention of the Pt particles in the redox events are presented, and a centrifuged colloidal Pt catalyst stabilised by polyvinyl alcohol showed exceptionally high activity in promoting hydrogen evolution from water via 2MV+ + H2O→PtH2 + 2OH− + 2 MV2+ where MV+ stands for reduced methylviologen.
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Molecular Engineering of Photosensitizers for Nanocrystalline Solar Cells: Synthesis and Characterization of Ru Dyes Based on Phosphonated Terpyridines.
Shaik M. Zakeeruddin,Mohammad Khaja Nazeeruddin,Peter Pechy,François P. Rotzinger,Robin Humphry-Baker,Kuppuswamy Kalyanasundaram,Michael Grätzel,Valery Shklover,T. Haibach +8 more
TL;DR: The mixed-ligand complex [Ru(HP-terpy)(Me(2)bpy)(NCS)] based on X-ray diffraction study is reported and appears to be a promising candidate as a photosensitizer in dye-sensitized photoelectrochemical cells based on nanocrystalline films of TiO(2).