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
More filters
Journal ArticleDOI
Facile synthesis of a bulky BPTPA donor group suitable for cobalt electrolyte based dye sensitized solar cells
Peng Gao,Yongjoo Kim,Jun-Ho Yum,Thomas W. Holcombe,Mohammad Khaja Nazeeruddin,Michael Grätzel +5 more
TL;DR: In this paper, the BPTPA donor is used to quickly access two new sensitizers: NT35 and G220, which both exhibit greater IPCE response with cobalt-based redox shuttles, compared to the classical iodide/triiodide electrolyte.
Journal ArticleDOI
A chain is as strong as its weakest link – Stability study of MAPbI3 under light and temperature
Philippe Holzhey,Philippe Holzhey,Pankaj Yadav,Pankaj Yadav,Silver-Hamill Turren-Cruz,Silver-Hamill Turren-Cruz,Silver-Hamill Turren-Cruz,Amita Ummadisingu,Michael Grätzel,Anders Hagfeldt,Michael Saliba +10 more
TL;DR: In this article, the degradation behavior of volatile organic methylammonium (MA) cation-containing perovskite solar cells was studied. And the authors showed that at elevated temperatures of 50 and 65°C, the devices retained 100% and 90% of their initial efficiency after 500'h of illumination, respectively.
Journal ArticleDOI
Electron‐Affinity‐Triggered Variations on the Optical and Electrical Properties of Dye Molecules Enabling Highly Efficient Dye‐Sensitized Solar Cells
Yuhang Liu,Yiming Cao,Weiwei Zhang,Marko Stojanovic,M. Ibrahim Dar,Peter Pechy,Yasemin Saygili,Anders Hagfeldt,Shaik M. Zakeeruddin,Michael Grätzel +9 more
TL;DR: Besides achieving high power conversion efficiencies (PCEs) for dye-sensitized solar cells (DSCs), this work provides a possible method for the design and fabrication of low-cost highly efficient DSCs.
Journal ArticleDOI
New ruthenium sensitizer with carbazole antennas for efficient and stable Thin-film Dye-sensitized solar cells
Chia Yuan Chen,Nuttapol Pootrakulchote,Shi Jhang Wu,Mingkui Wang,Jheng Ying Li,Jia Hung Tsai,Chun Guey Wu,Shaik M. Zakeeruddin,Michael Grätzel +8 more
TL;DR: In this article, a new heteroleptic ruthenium complex, coded CYC-B13, incorporating an antenna ligand composed of the sequential connection of a Conjugated segment and carbazole hole-transport moiety was prepared.
Journal ArticleDOI
Room-temperature combinatorial screening of cyclometallated iridium(III) complexes for a step towards molecular control of colour purity
Etienne Baranoff,Il Nam Jung,Rosario Scopelliti,Euro Solari,Michael Grätzel,Md. K. Nazeeruddin +5 more
TL;DR: A library of emission spectra of 90 bis-cyclometallated iridium complexes has been obtained using a simple combinatorial approach performed at room temperature, opening the way for a rational approach to the engineering of the emission colour purity at a molecular level.