IN-PERSON EVENT - REGISTER HERE \;to attend
\nBy Dr Song Jiang\, \;Université de Strasbourg\, CNRS\, IPCMS\, UMR 7504\, F-67000 Strasbourg (France).
\n< strong>Abstract: \;The combination of scanning tunneling micr oscopy (STM) with optical spectroscopy has emerged as a powerful approach to investigate light–matter interactions at the single-molecule level. T his capability relies on highly localized plasmonic modes confined within the STM junction\, which can strongly enhance optical responses from singl e molecules through coupling to their vibrational and electronic excitatio ns.
\nIn this talk\, I will present two examples of STM-based optica l spectroscopy. First\, I will discuss tip-enhanced Raman spectroscopy (TE RS) of single molecules\, focusing on how local vibrational spectroscopy c an reveal molecular structure with high spatial resolution [1-3]. I will t hen introduce recent studies on STM-induced luminescence (STML) from singl e molecules and individual graphene nanoribbons[4\,5]\, where electrolumin escence provides insight into optical excitations and structure-dependent emission properties.
\n\;Short bio: Song Jiang received h is PhD in Physics in 2016 from the University of Science and Technology of China (USTC)\, where he advanced subnanometer-resolution tip-enhanced Ram an spectroscopy (TERS) under the supervision of Prof. Zhenchao Dong. He th en carried out postdoctoral research at Northwestern University with Prof. Richard P. Van Duyne\, focusing on electrochemical TERS (EC-TERS). He is currently a Research Engineer at IPCMS-CNRS (Strasbourg)\, where he works with Guillaume Schull on the development of optical scanning tunneling mic roscopy (STM).
\nSong Jiang develops advanced STM-based spectroscopi es\, including STM-induced electroluminescence (STML) and tip-enhanced opt ical techniques\, to explore light–matter interactions and optoelectroni c properties at the single-molecule level. His current research focuses on excitonic and charge dynamics in atomically precise nanographenes and gra phene nanoribbons.
\nHosted by ICREA Researc h Professor and Group Leader Aitor Mugarza\, Atomic Manipulation and Spectros copy \;group \;at ICN2.
\n\;
\n\;
DTSTART:20260629T123000 DTEND:20260629T133000 LOCATION:ICN2 Seminar Room\, Campus UAB CATEGORIES:ICN2 Seminars END:VEVENT END:VCALENDAR