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.
Papers
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Journal ArticleDOI
Insight into D-A-π-A Structured Sensitizers: A Promising Route to Highly Efficient and Stable Dye-Sensitized Solar Cells.
TL;DR: The basic principles are involved in molecular engineering of efficient D-A-π-A sensitizers, providing a clear road map showing how to modulate the energy bands, rationally extending the response wavelength, and optimizing photovoltaic efficiency step by step.
Journal ArticleDOI
Dye Dependent Regeneration Dynamics in Dye Sensitized Nanocrystalline Solar Cells: Evidence for the Formation of a Ruthenium Bipyridyl Cation/Iodide Intermediate
TL;DR: In this paper, a transient absorption study of the kinetics of re-reduction of ruthenium bipyridyl dye cations adsorbed to nanocrystalline TiO2 films by iodide ions is presented.
Journal ArticleDOI
Regenerative PbS and CdS quantum dot sensitized solar cells with a cobalt complex as hole mediator.
Hyo Joong Lee,Peter Chen,Soo-Jin Moon,Frédéric Sauvage,Kevin Sivula,Takeru Bessho,Daniel R. Gamelin,Pascal Comte,Shaik M. Zakeeruddin,Sang Il Seok,Michael Grätzel,Md. K. Nazeeruddin +11 more
TL;DR: The cobalt complex herein used as a regenerative redox couple was found to be more efficient in generating photocurrents from PbS QD cells than the typical hole scavenger Na2S in a three-electrode configuration.
Journal ArticleDOI
Tailored Amphiphilic Molecular Mitigators for Stable Perovskite Solar Cells with 23.5% Efficiency
Hongwei Zhu,Hongwei Zhu,Yuhang Liu,Felix Eickemeyer,Linfeng Pan,Dan Ren,Marco A. Ruiz‐Preciado,Brian Carlsen,Bowen Yang,Xiaofei Dong,Zaiwei Wang,Hongli Liu,Shirong Wang,Shaik M. Zakeeruddin,Anders Hagfeldt,M. Ibrahim Dar,Xianggao Li,Michael Grätzel +17 more
TL;DR: It is found that simple surface treatment with tBBAI significantly accelerates the charge extraction from the perovskite into the spiro-OMeTAD hole-transporter, while retarding the nonradiative charge carrier recombination, boosting the power conversion efficiency (PCE) of the PSC and reducing the hysteresis to barely detectable levels.
BookDOI
Photosensitization and photocatalysis using inorganic and organometallic compounds
TL;DR: A.K. Kalyanasundaram et al. as discussed by the authors discuss the evolution of Inorganic and Organometallic Photochemistry and their application in photoelectrochemical cells.