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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Multifunctional molecular modulators for perovskite solar cells with over 20% efficiency and high operational stability
Dongqin Bi,Xiong Li,Xiong Li,Jovana V. Milić,Dominik J. Kubicki,Norman Pellet,Jingshan Luo,Jingshan Luo,Thomas LaGrange,Pierre Mettraux,Lyndon Emsley,Shaik M. Zakeeruddin,Michael Grätzel +12 more
TL;DR: A multifunctional molecular modulator is designed that interacts with the perovskite via modes elucidated by solid state NMR spectroscopy and show high efficiency and operational stability.
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Activation Energies for the Rate-Limiting Step in Water Photooxidation by Nanostructured α-Fe2O3 and TiO2
Alexander J. Cowan,C. Barnett,Stephanie R. Pendlebury,Monica Barroso,Kevin Sivula,Michael Grätzel,James R. Durrant,David R. Klug +7 more
TL;DR: It is demonstrated that one reason for the slow hole transfer on α-Fe(2)O(3) is the presence of a significant thermal barrier, the magnitude of which is found to be independent of the applied bias at the potentials examined.
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High‐Performance Perovskite Solar Cells with Enhanced Environmental Stability Based on Amphiphile‐Modified CH3NH3PbI3
Dongqin Bi,Peng Gao,Rosario Scopelliti,Emad Oveisi,Jingshan Luo,Michael Grätzel,Anders Hagfeldt,Mohammad Khaja Nazeeruddin +7 more
TL;DR: A new aliphatic fluorinated amphiphilic additive is added to CH3 NH3 PbI3 perovskite to tune the morphology and enhance the environmental stability without sacrificing the performance of the devices.
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Employ a bisthienothiophene linker to construct an organic chromophore for efficient and stable dye-sensitized solar cells
Guangliang Zhang,Yu Bai,Renzhi Li,Dong Shi,Sophie Wenger,Shaik M. Zakeeruddin,Michael Grätzel,Peng Wang +7 more
TL;DR: In this paper, the bisthienothiophene conjugated linker along with a hydrophobic triphenylamine electron-donor and a hyphilic cyanoacrylic acid electron-acceptor was employed to construct a high molar extinction coefficient organic photosensitizer, exhibiting a power conversion efficiency of 8.0% measured under irradiation of air mass 1.5 global (AM 1 5G) full sunlight.
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Visible light induced generation of hydrogen from H2S in mixed semiconductor dispersions; improved efficiency through inter-particle electron transfer
TL;DR: In this paper, electron transfer from the conduction band of CdS to that of TiO2 particles occurs in alkaline suspensions containing SH- ions and is exploited to improve the performance of a system that decomposes H2S with visible light.