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Webinar: Determination and control of charge states of individual molecules

Shadi Fatayer from IBM Research – Zurich, Rueschlikon, Switzerland will give a presentation.

13.07.2020 | Andrew Cassidy

Dato man 13 jul
Tid 15:00 16:00
Sted

Abstract

The physicochemical properties of molecules adsorbed on surfaces are charge-state dependent. Insulating films serve as an ideal platform to study the physics and chemistry of charged molecules, because these films avoid charge leakage. However, investigating individual charged molecules on insulators is experimentally challenging. The atomic force microscope (AFM), capable of single-electron sensitivity and atomic resolution, is suitable to be used with insulators. I will first show how the charge state of molecules can be controlled. Then, I will present how different aspects of charged molecules can be accessed with the AFM: (i) How using the AFM as a single-electron current meter allows for tunneling spectroscopy to be performed on insulators and electron-transfer properties probed, (ii) how reversible chemical reactions can be induced by charging molecules and (iii) the insights gained via resolving the atomic structure of individual molecules in different charge states.   

Registration

Please note that registration is compulsory for this online event. Register your interest by emailing amc@phys.au.dk to gain access to the Zoom invitation.

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