In stark contrast to their 3D counterparts, two-dimensional (2D) halide perovskites can incorporate a large library of organic compounds,[En. Environ. Sci. 13, 1154] enabling the design of materials with tailored properties and functionalities. For example, fluorination of the organic spacers was reported to improve the material’s stability upon exposure to moisture,[Chem. Mater. 30, 8211] while the development of chiral spacers enabled unique spin-selectivity with immense possibilities for spintronics.[Nat. Comm., 12, 4982] Alternatively, the use of conjugated organic spacers allows to realise new functionalities, associated to charge/energy transfer processes between the organic and inorganic components.[Nat. Chem. 11, 1152; Inorg. Chem. 38, 26, 6246]. While 2D perovskites have already found applications in solar cells, LEDs and FETs, their incredible chemical versatility makes them a unique platform to not only study their fundamental photophysics, but also develop entirely new types of devices. For example, recently mobile trions have been demonstrated in 2D perovskites, opening the path to new applications such as exciton transistors.[10.1002/adma.202210221] This symposium aims to bring together experts from the fields of synthetic chemistry, spectroscopy, photophysics, device design and simulations to fully unleash the potential of 2D perovskites.
Sponsored by:
- Organic cations for 2D perovskites
- Film formation processes
- Photophysics of 2D perovskites
- Chirality and spin-selectivity
- Applications of 2D perovskites in solar cells
- Applications of 2D perovskites in LED
- Applications of 2D perovskites in FET
- Stability of 2D perovskites and related devices
- Theory and simulations
Dr. Yana Vaynzof is the Chair for Emerging Electronic Technologies at the Technical University of Dresden (Germany) and a Director at the Leibniz Institute for Solid State and Materials Research Dresden. She received a B.Sc. in Electrical Engineering from the Technion – Israel Institute of Technology (Israel) in 2006 and a M. Sc. In Electrical Engineering from Princeton University (USA) in 2008. In 2011, she received a Ph.D. in Physics from the University of Cambridge (UK). Yana was a postdoctoral research associate at the Cavendish Laboratory, University of Cambridge (UK) and an assistant professor at Heidelberg University (Germany) from 2014 to 2019. Yana Vaynzof is the recipient of a number of fellowships and awards, including the ERC Starting Grant, ERC Consolidator Grant, Gordon Wu Fellowship, Henry Kressel Fellowship, Fulbright-Cottrell Award and the Walter Kalkhof-Rose Memorial Prize. She is a Fellow of the Royal Society of Chemistry and the winner of the Energy & Environmental Science Lectureship Award. Her research interests lie in the field of emerging photovoltaics, focusing on the study of material and device physics of organic, quantum dot and perovskite solar cells by integrating device fabrication and characterisation with the application and development of advanced spectroscopic methods.
Volker Blum is an Associate Professor in the Thomas Lord Department of Mechanical Engineering and Materials Science at Duke University, Durham, NC. He obtained his doctoral degree from University of Erlangen, Germany in 2001 and then pursued his post-doctoral research at National Renewable Energy Laboratory in Golden, CO, from 2002-2004. From 2004-2013, he was a scientist and group leader at the Fritz Haber Institute in Berlin, Germany. He develops computational methods and software for electronic structure simulations, data analysis and data sharing in materials science and in computational chemistry, including as the lead developer of the FHI-aims electronic structure code. His current applied research focuses on novel semiconductor materials as well as molecular spectroscopy. In particular, his group is working on hybrid perovskite materials and chalcogenide semiconductors.
Giulia is Associate Professor at Physical Chemistry Unit at University of Pavia, leading the PVsquared2 team, and running the European Grant ERCStG Project “HYNANO”aiming at the development of advanced hybrid perovskites materials and innovative functional interfaces for efficient, cheap and stable photovoltaics. Within this field, Giulia contributed to reveal the fundamental lightinduced dynamical processes underlying the operation of such advanced optoelectronic devices whose understanding is paramount for a smart device development and for contributing to the transition of a green economy.
Giulia received an MS in Physical Engineering in 2008 and obtained her PhD in Physics cum laude in 2012 at the Politecnico of Milan. Her experimental thesis focused on the realisation of a new femtosecond-microscope for mapping the ultrafast phenomena at organic interfaces. During her PhD, she worked for one year at the Physics Department of Oxford University where she pioneered new concepts within polymer/oxide solar cell technology. From 2012-2015, she was a post-doctoral researcher at the Italian Institute of Technology in Milan. In 2015, she joined the Ecole Polytechnique Fédérale de Lausanne (EPFL) with a Co-Funded Marie Skłodowska-Curie Fellowship. From 2016 to 2019, she has been awarded by the Swiss Ambizione Energy Grant providing a platform to lead her independent research group at EPFL focused on the developemnt of new generation hybrid perovskite solar cells.
She is author of 90 peer-reviewed scientific papers bringing her h-index to 44 (>13’000 citations), focused on developement and understanding of the interface physics which governs the operation of new generation solar cells.
Recently, she received the USERN prize in Physical Science, the Swiss Physical Society Award in 2018 for Young Researcher and the IUPAP Young Scientist Prize in Optics. She is currently USERN Ambassador for Italy and board member of the Young Academy of Europe.
More can be found at https://pvsquared2.unipv.it.
Weblink: https://people.epfl.ch/giulia.grancini?lang=en
Jovana V. Milíc has been an Associate Professor at the Department of Chemistry of the University of Turku in Finland since September 2024. She obtained her Dr. Sc. degree in the Department of Chemistry and Applied Biosciences at ETH Zurich, Switzerland, in 2017. She then worked as a Scientist in the Laboratory of Photonics and Interfaces at EPFL and as an Assistant Professor at the Adolphe Merkle Institute of the University of Fribourg in Switzerland. Her research is centered around bioinspired stimuli-responsive (supra)molecular materials for energy conversion, with a particular interest in photovoltaics and neuro-morphic computing for smart and sustainable (nano)technologies. For more information, refer to her website (www.jovanamilic.com).
Julian obtained his B.S. in chemical engineering from the University of New Mexico and his M.Phil. in chemistry from the University of Cambridge, where he studied electrocatalytic materials. He recieved his Ph.D. in chemical engineering from Stanford University under the supervision of Profs. Hemamala Karunadasa and Michael Toney, focusing on synthesis, defect chemistry, and X-ray characterization of halide perovskite semiconductors. Julian is currently a Schmidt Science Fellow at the Unviersity of California, Berkeley; his present research concerns applying chemical design principles to next-generation electronics.