***EVENTO CANCELLATO***
Relatore: Prof. Omar Yaghi
Titolo: Reticular Chemistry, Climate, AI
Abstract. I would like to emphasize the need for research and development of wide bandgap (WBG) and ultrawide-bandgap (UWBG) semiconductors, especially GaN, AlN and their alloys. The contribution of GaN and related materials in LED lighting to energy savings is significant. The application of these material systems is not limited to lighting: replacing Si-based power devices with GaN-based power devices can reduce total electricity consumption by 25%. GaN-based high-voltage power devices should become the key devices in establishing renewable-energy-based electricity grids because of their high-efficiency, high-speed switching and high-voltage capability. GaN-based high-frequency and high-power transistors will provide a unique solution for realizing millimeter-wave and even THz wireless communication systems. In this presentation, I would like to focus on the recent development and prospects of nitride-based semiconductors and their devices.
Dove
Aula: Auditorium, Edificio U12, via Vizzola 5
Collegamento da remoto: da definire
Orario: da definire
Biografia
Professor Omar Yaghi is widely known for pioneering a new field of chemistry, Reticular Chemistry, which he defines as 'stitching molecular building blocks into crystalline framework structures by strong bonds'. The outcome of this chemistry has been metalorganic frameworks (MOFs) and covalent organic frameworks (COFs). These materials have the highest surface areas known to date, making them useful for hydrogen and methane storage, carbon capture and conversion, water harvesting from desert air, catalysis, and healthcare. The chemistry approach he developed has led to an exponential growth in the creation of new materials.
He has published over 300 peer-reviewed articles on MOFs and COFs, which have received a total of more than 250,000 citations. Yaghi is an elected member of the U.S. National Academy of Sciences (2019) and the German National Academy of Sciences Leopoldina (2022). He has also been honored with many awards, including the Sacconi Medal of the Italian Chemical Society (2004), Materials Research Society Medal (2007), American Chemical Society Award in the Chemistry of Materials (2009), Royal Society of Chemistry Centenary Prize (2010), King Faisal International Prize in Science (2015), Albert Einstein World Award of Science (2017), BBVA Foundation Frontiers of Knowledge Award in Basic Sciences (2017), Wolf Prize in Chemistry (2018), Eni Award for Excellence in Energy (2018), Gregori Aminoff Prize by the Royal Swedish Academy of Sciences (2019), August-Wilhelm-von-Hofmann-Denkmünze of the German Chemical Society (2020), Royal Society of Chemistry Sustainable Water Award (2020), VinFuture Prize for Emerging Science and Technology (2021), Wilhelm Exner Medal (2023), Fiat Lux Award-UC Berkeley (2024), Solvay Prize (2024), Tang Prize (2024), and Balzan Prize (2024).
Breakthroughs in Materials Science
Il seminario rientra nell'iniziativa Breakthroughs in Materials Science, organizzata dal Dipartimento di Scienza dei Materiali dell’Università di Milano – Bicocca. Questa iniziativa propone un ciclo di interventi da parte scienziati di fama internazionale, i cui recenti studi hanno promosso e consentito una profonda evoluzione nel campo della Scienza dei Materiali, con grandi ricadute anche a livello tecnologico. Aventi carattere divulgativo, i seminari sono rivolti a docenti, studenti e ad un vasto pubblico interessato a temi scientifici e tecnologici. Oltre alla partecipazione in presenza, sarà reso disponibile il collegamento in streaming.