On-Surface Chemistry Induced by Long-Lived Excitons: (NO)2 Dissociation on C60
- 25 June 2020
- journal article
- research article
- Published by American Chemical Society (ACS) in The Journal of Physical Chemistry Letters
- Vol. 11 (14), 5490-5496
- https://doi.org/10.1021/acs.jpclett.0c01247
Abstract
Solid-state excitonic excitations play an increasingly important role in optoelectronic and light harvesting processes due to their ubiquitous presence in dipolar two-dimensional materials. Here we show that long-lived solid-state excitons induce chemical reactions in adsorbed molecules and thus convert light into chemical energy. For the model system (NO)2 dimer adsorbed on ordered c(4×4) C60 films, time-of-flight measurements following UV laser excitation reveal a slow and a fast dissociative desorption channel, which are assigned to intersystem crossing and internal conversion, respectively, by time-dependent density functional theory calculations.Keywords
Funding Information
- Deutsche Forschungsgemeinschaft (SFB 858)
This publication has 50 references indexed in Scilit:
- Ultrafast surface vibrational dynamicsSurface Science Reports, 2010
- Real-Time Observation of Nonadiabatic Surface Dynamics: The First Picosecond in the Dissociation of NO on IridiumPhysical Review Letters, 2006
- Femtochemistry at Metal Surfaces: Nonadiabatic Reaction DynamicsChemical Reviews, 2006
- Real-Time Observation of Molecular Motion on a SurfaceScience, 2005
- Time-Resolved Measurement of Surface Diffusion Induced by Femtosecond Laser PulsesPhysical Review Letters, 2005
- Electronic Excitation and Dynamic Promotion of a Surface ReactionPhysical Review Letters, 2003
- Phonon- Versus Electron-Mediated Desorption and Oxidation of CO on Ru(0001)Science, 1999
- Direct measurement of nonequilibrium electron-energy distributions in subpicosecond laser-heated gold filmsPhysical Review Letters, 1992
- Femtosecond time-resolved measurement of desorptionPhysical Review Letters, 1991
- Desorption induced by femtosecond laser pulsesPhysical Review Letters, 1990