MIT.nano Seminar: Leo Gross

Monday, October 18, 2021 at 11:00am to 12:00pm

Virtual Event

The October MIT.nano Seminar will feature a talk by Leo Gross, research scientist at IBM Research Zurich.

On-surface reactions and single-molecule charge transitions controlled by atom manipulation

Atomic force microscopy (AFM) with functionalized tips achieves atomic and bond-resolved resolution providing insights into the structure, aromaticity, charge states and bond-order relations of individual molecules [1]. The products of on-surface reactions can be resolved and characterized. Recently, we generated by atom manipulation the elusive carbon allotrope cyclo[18]carbon and resolved its debated structure [2]. 

On insulating substrates, we can control the charge states of molecules. With ultra-high-resolution imaging we resolve how the oxidation state of molecules affects their structure [3]. By alternatively attaching and detaching single charges from a molecule on an insulator, we probe transitions between charged and excited states and quantify singlet and triplet excitation energies [4].

References:
[1] L. Gross et al. Angew. Chem Int. Ed. 57, 3888 (2018)
[2] K. Kaiser et al. Science 365, 1299 (2019)
[3] S. Fatayer et al. Science 365, 142 (2019)
[4] S. Fatayer et al. Phys. Rev. Lett. 126, 176801 (2021)

This talk is open to the public and will be given virtually.

The MIT.nano Seminar Series is a monthly lecture on topics related to nanoscience and nanotechnology given by an expert in the field. The series is organized by MIT Assistant Professor Farnaz Niroui.

Event Type

Conferences/Seminars/Lectures

Events By Interest

Academic

Events By Audience

Public, MIT Community, Students, Alumni, Faculty, Staff

Events By School

School of Engineering (SoE), School of Science

Tags

research, engineering, lecture, technology, science, Seminar, nanotechnology, Nanoscience, nanoscale, Imaging, atoms, microscopy, molecules

Website

https://mitnano.mit.edu/events/mitnan...

Department
MIT.nano
Contact Email

mitnano@mit.edu

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