BEGIN:VCALENDAR VERSION:2.0 CALSCALE:GREGORIAN PRODID:iCalendar-Ruby BEGIN:VEVENT CATEGORIES:Lectures & Presentations DESCRIPTION:The Physics & Astronomy Colloquium Series presents Alberto Nald oni of University of Turin\, Department of Chemistry\, Torino\, Italy\, dis cussing "Photochemical Energy Conversion at the Nanoscale with Integrated P hotonics" on Oct. 7.\n\n \n\nAbstract: Plasmonic nanostructures can dramati cally increase the chemical reaction rates by providing more efficient sola r-to-chemical energy conversion. Upon light excitation\, metallic nanostruc tures sustain the collective oscillation of surface electrons\, i.e. surfac e plasmons\, generating several non-linear effects such as intense electrom agnetic fields and non-thermal (hot) carriers. Their thermalization results in intense local heating of the nanostructures and of their surroundings. All these effects can alter the reaction pathways and boost the reaction ki netics. Such discoveries have boosted the field of plasmonic photocatalysis \, which aims at driving industrially-relevant chemical reactions using sol ar illumination.\n\nIn this colloquium talk\, I will first show a newly dev eloped technique enabling the investigation of the catalytic sites over pla smonic nanostructures on planar substrates with deeply subwavelength resolu tion.\n\nIn the second part of the talk\, I will focus on how to fabricate large-area plasmonic metasurfaces exhibiting a rich set of electromagnetic resonances and their integration in photoelectrochemical water splitting ce lls\, direct alcohol fuel cells\, and photochemical devices for hydrogen ev olution. I will discuss the complex relationship between the optical resona nces of the plasmonic metasurfaces with their chemical reactivity by distin guishing the various effects enhancing their photochemical performance. DTEND:20221007T210000Z DTSTAMP:20241123T225532Z DTSTART:20221007T201000Z GEO:39.322732;-82.10287 LOCATION:Walter Hall\, 145 SEQUENCE:0 SUMMARY: Physics Colloquium | Photochemical Energy Conversion at the Nanosc ale with Integrated Photonics\, Oct. 7 UID:tag:localist.com\,2008:EventInstance_40844785680273 URL:https://calendar.ohio.edu/event/physics_colloquium_nanotech_catalysis_a nd_energy_oct_7 END:VEVENT END:VCALENDAR