Ursula Keller wins “Swiss Nobel” Marcel Benoist Prize
Farewell: the NCCR MUST ended 
MUST2022 Conference
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FELs of Europe prize for Jeremy Rouxel
Ruth Signorell wins Doron prize
New FAST-Fellow Uwe Thumm at ETH
International Day of Women and Girls in Science
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EU XFEL Young Scientist Award for Camila Bacellar,
Prizes for Giulia Mancini and Rebeca Gomez Castillo
Nobel Prize in Chemistry awarded to RESOLV Member Benjamin List
Hans Jakob Wörner invited to give the „New Horizons Solvay Lectures” 
Unusual keynote talk at an international scientific conference
NCCR MUST at Scientifica 2021Towards time- and angle-resolved photoelectron spectroscopy of ultrafine weakly-bound aerosol particles
 | Prof. Dr. Ruth Signorell ETH Zurich Laboratory for Physical Chemistry Vladimir-Prelog-Weg 2 CH-8093 Zurich Switzerland Interaction of light with aerosol particles and nanoparticles +41 44 633 4621 . | |||
| Project starts | 1.4.2014 | |||
| Project ends | 31.12.2015 | |||
| Goals | Combination of a femtosecond ultraviolet/visible (UV/VIS) laser system with a velocity map imaging (VMI) photoelectron spectrometer for pump-probe experiments on clusters and aerosol particles. | |||
| Project partners |
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| Abstract | Nanometer-sized (<10 nm) weakly-bound aggregates built from molecules (referred to as “ultrafine aerosol particles”) play an important role in fundamental atmospheric processes, such as nucleation and cloud formation. Photoelectron spectroscopy provides information on the electronic structure of such nanosized species. We propose to study the dynamics of the first electronically excited state of sodium-dimethyl ether aggregates (Na(CH3OCH3)n) as a function of the number of dimethyl ether solvent molecules using a femtoseconds pump-probe scheme and angle-resolved photoelectron spectroscopy. The goal is to compare the results for dimethyl ether solvent with corresponding time-resolved data for sodium-ammonia aggregates (Na(NH3)n) to clarify the potential influence of hydrogen bonding on the excited state dynamics. XUV single photon ionization of ultrafine aerosol particles consisting of volatiles, such as water, methanol, dimethyl ether, and ammonia, is accompanied by a fast intra- cluster proton transfer. Our general goal of this project is to study how this proton transfer manifests itself in angle-resolved photoelectron spectra. | |||
| Dissemination | Thomas E. Gartmann, Bruce L. Yoder, Egor Chasovskikh, and Ruth Signorell, “Photoelectron spectrometer for time-resolved velocity map imaging of clusters and aerosol particles”, poster contribution, Gordon Research Conference on Photoionization & Photodetachment, Lucca, Italy, February 7-12, 2016 Ruth Signorell, “Angle-Resolved Photoelectron Spectroscopy of Aerosol Particles”, invited talk, Gordon Research Conference on Photoionization & Photodetachment, |
