S
Sergii Yakunin
Researcher at ETH Zurich
Publications - 91
Citations - 16490
Sergii Yakunin is an academic researcher from ETH Zurich. The author has contributed to research in topics: Perovskite (structure) & Quantum dot. The author has an hindex of 34, co-authored 82 publications receiving 11844 citations. Previous affiliations of Sergii Yakunin include National Academy of Sciences of Ukraine & École Polytechnique Fédérale de Lausanne.
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Journal ArticleDOI
Nanocrystals of Cesium Lead Halide Perovskites (CsPbX3, X = Cl, Br, and I): Novel Optoelectronic Materials Showing Bright Emission with Wide Color Gamut
Loredana Protesescu,Loredana Protesescu,Sergii Yakunin,Sergii Yakunin,Maryna I. Bodnarchuk,Maryna I. Bodnarchuk,Franziska Krieg,Franziska Krieg,Riccarda Caputo,Christopher H. Hendon,Ruo Xi Yang,Aron Walsh,Maksym V. Kovalenko,Maksym V. Kovalenko +13 more
TL;DR: The compelling combination of enhanced optical properties and chemical robustness makes CsPbX3 nanocrystals appealing for optoelectronic applications, particularly for blue and green spectral regions (410–530 nm), where typical metal chalcogenide-based quantum dots suffer from photodegradation.
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Fast Anion-Exchange in Highly Luminescent Nanocrystals of Cesium Lead Halide Perovskites (CsPbX3, X = Cl, Br, I)
Georgian Nedelcu,Loredana Protesescu,Loredana Protesescu,Sergii Yakunin,Sergii Yakunin,Maryna I. Bodnarchuk,Maryna I. Bodnarchuk,Matthias J. Grotevent,Maksym V. Kovalenko,Maksym V. Kovalenko +9 more
TL;DR: This work reports fast, low-temperature, deliberately partial, or complete anion-exchange in highly luminescent semiconductor nanocrystals of cesium lead halide perovskites (CsPbX3, X = Cl, Br, I).
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Low-threshold amplified spontaneous emission and lasing from colloidal nanocrystals of caesium lead halide perovskites
Sergii Yakunin,Sergii Yakunin,Loredana Protesescu,Loredana Protesescu,Franziska Krieg,Franziska Krieg,Maryna I. Bodnarchuk,Maryna I. Bodnarchuk,Georgian Nedelcu,Georgian Nedelcu,Markus Humer,Gabriele De Luca,Manfred Fiebig,Wolfgang Heiss,Maksym V. Kovalenko,Maksym V. Kovalenko +15 more
TL;DR: Low-threshold amplified spontaneous emission and lasing from ∼10 nm monodisperse colloidal nanocrystals of caesium lead halide perovskites CsPbX3 are reported.
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Detection of X-ray photons by solution-processed lead halide perovskites
Sergii Yakunin,Mykhailo Sytnyk,Dominik Kriegner,Shreetu Shrestha,Moses Richter,Gebhard J. Matt,Hamed Azimi,Christoph J. Brabec,Julian Stangl,Maksym V. Kovalenko,Wolfgang Heiss +10 more
TL;DR: Here it is demonstrated a possibility to use such inexpensive semiconductors for sensitive detection of X-ray photons by direct photon-to-current conversion and a compelling combination of fast photoresponse and a high absorption cross-section for X-rays, owing to the heavy Pb and I atoms.
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Colloidal CsPbX3 (X = Cl, Br, I) Nanocrystals 2.0: Zwitterionic Capping Ligands for Improved Durability and Stability
Franziska Krieg,Franziska Krieg,Stefan T. Ochsenbein,Stefan T. Ochsenbein,Sergii Yakunin,Sergii Yakunin,Stephanie ten Brinck,Philipp Aellen,Philipp Aellen,Adrian Süess,Adrian Süess,Baptiste Clerc,Baptiste Clerc,Dominic Guggisberg,Dominic Guggisberg,Olga Nazarenko,Olga Nazarenko,Yevhen Shynkarenko,Yevhen Shynkarenko,Sudhir Kumar,Chih-Jen Shih,Ivan Infante,Maksym V. Kovalenko,Maksym V. Kovalenko +23 more
TL;DR: A new ligand capping strategy utilizing common and inexpensive long-chain zwitterionic molecules such as 3-(N,N-dimethyloctadecylammonio)propanesulfonate is proposed, resulting in much improved chemical durability and allows for the isolation of clean NCs with high photoluminescence quantum yields of above 90% after four rounds of precipitation/redispersion.