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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Energy and hole transfer between dyes attached to titania in cosensitized dye-sensitized solar cells.
Brian E. Hardin,Alan Sellinger,Thomas Moehl,Robin Humphry-Baker,Jacques-E. Moser,Peng Wang,Shaik M. Zakeeruddin,Michael Grätzel,Michael D. McGehee +8 more
TL;DR: The general feasibility of using energy transfer to boost light harvesting from 700 to 800 nm is demonstrated and also highlights a key challenge for developing highly efficient cosensitized dye-sensitized solar cells.
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Three-channel transmission line impedance model for mesoscopic oxide electrodes functionalized with a conductive coating.
TL;DR: A three-channel transmission line (TL) impedance model is proposed to address the charge transport behavior of molecular functionalized mesoscopic oxide electrodes at different bias conditions and shows that the model constitutes a useful tool for characterizing nanoporous electrodes functionalized with organic conducting layers in the surface.
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Influence of halogen atoms on a homologous series of bis-cyclometalated iridium(III) complexes
Etienne Baranoff,Basile F. E. Curchod,Filippo Monti,Frédéric Steimer,Gianluca Accorsi,Ivano Tavernelli,Ursula Rothlisberger,Rosario Scopelliti,Michael Grätzel,Md. K. Nazeeruddin +9 more
TL;DR: According to theoretical geometries for the lowest triplet state, the large halogen substituents contribute to sizable distortions of specific phenylpyridine ligands for ClIrPic and BrIrPic, which are likely to play a role in the emissive and nonradiative properties when coupled with the heavy-atom effect.
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A–D–A-type S,N-heteropentacene-based hole transport materials for dopant-free perovskite solar cells
Christopher Steck,Marius Franckevičius,Shaik M. Zakeeruddin,Amaresh Mishra,Peter Bäuerle,Michael Grätzel +5 more
TL;DR: In this article, the design and synthesis of acceptor-donor-acceptor (A-D-A) type low band gap hole transport materials (HTM) comprising S,N-heteropentacene central units for solid-state perovskite-based solar cells were reported.
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Guanidinium-Assisted Surface Matrix Engineering for Highly Efficient Perovskite Quantum Dot Photovoltaics.
Xufeng Ling,Jianyu Yuan,Xuliang Zhang,Yuli Qian,Shaik M. Zakeeruddin,Bryon W. Larson,Qian Zhao,Junwei Shi,Jiacheng Yang,Kang Ji,Yannan Zhang,Yongjie Wang,Chunyang Zhang,Steffen Duhm,Joseph M. Luther,Michael Grätzel,Wanli Ma +16 more
TL;DR: A ligand-assisted surface matrix strategy to engineer the surface and packing states of Pe-QD solids is demonstrated by a mild thermal annealing treatment after ligand exchange processing triggered by guanidinium thiocyanate, which exhibits remarkably enhanced charge mobility and carrier diffusion length compared to control ones.