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
Perovskite solar cells with CuSCN hole extraction layers yield stabilized efficiencies greater than 20
Neha Arora,M. Ibrahim Dar,Alexander Hinderhofer,Norman Pellet,Frank Schreiber,Shaik M. Zakeeruddin,Michael Grätzel +6 more
TL;DR: Th Thin CuSCN films can replace organic hole-transporting layers that limit thermal stability of devices and demonstrate PSCs that achieve stabilized efficiencies exceeding 20% with copper(I) thiocyanate (CuSCN) as the hole extraction layer.
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Highly Efficient Light-Harvesting Ruthenium Sensitizer for Thin-Film Dye-Sensitized Solar Cells
Chia Yuan Chen,Mingkui Wang,Jheng Ying Li,Nuttapol Pootrakulchote,Leila Alibabaei,Cevey Ha Ngoc-Le,Jean David Decoppet,Jia Hung Tsai,Carole Grätzel,Chun Guey Wu,Shaik M. Zakeeruddin,Michael Grätzel +11 more
TL;DR: A high molar extinction coefficient heteroleptic ruthenium complex, incorporating an electron-rich hexylthio-terminal chain, has been synthesized and demonstrated as an efficient sensitizer for dye-sensitized solar cells.
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Low cost photovoltaic modules based on dye sensitized nanocrystalline titanium dioxide and carbon powder
Andreas Kay,Michael Grätzel +1 more
TL;DR: In this article, a new type of photovoltaic module based on monolithically series connected dye-sensitized photoelectrochemical cells is described, where each solar cell element consists of three porous layers on a transparent conducting substrate.
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Mixed‐Organic‐Cation Perovskite Photovoltaics for Enhanced Solar‐Light Harvesting
Norman Pellet,Peng Gao,Giuliano Gregori,Tae-Youl Yang,Mohammad Khaja Nazeeruddin,Joachim Maier,Michael Grätzel,Michael Grätzel +7 more
TL;DR: This work shows that the goal of extending the optical-absorption onset of perovskite-based photovoltaics further into the red to enhance solar-light harvesting can be reached by using a mixture of formamidinium and methylammonium cations, which leads to an enhanced short-circuit current and thus superior devices to those based on only CH3 NH3 (+).
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Understanding the rate-dependent J–V hysteresis, slow time component, and aging in CH3NH3PbI3 perovskite solar cells: the role of a compensated electric field
Wolfgang Tress,Nevena Marinova,Thomas Moehl,Shaik M. Zakeeruddin,Mohammad Khaja Nazeeruddin,Michael Grätzel +5 more
TL;DR: In this paper, the rate-dependent hysteresis seen in current-voltage scans of CH3NH3PbI3 perovskite solar cells is related to a slow field-induced process that tends to cancel the electric field in the device at each applied bias voltage.