Projects per year
Abstract
Knowledge of the factors controlling excited state dynamics in excitonically coupled dimers and higher aggregates is critical for understanding natural and artificial solar energy conversion. In this work we report ultrafast solvent polarity dependent excited state dynamics of the structurally well‐defined subphthalocyanine dimer, μ‐OSubPc 2 . Stationary electronic spectra demonstrate strong exciton coupling in μ‐OSubPc 2 . Femtosecond transient absorption measurements reveal ultrafast excimer formation from the initially excited exciton, mediated by intramolecular structural evolution. In polar solvents the excimer state decays directly through symmetry breaking charge transfer to form a charge separated state. Charge separation occurs under control of solvent orientational relaxation.
Original language | English |
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Pages (from-to) | 10568-10572 |
Number of pages | 5 |
Journal | Angewandte Chemie-International Edition |
Volume | 60 |
Issue number | 19 |
Early online date | 19 Feb 2021 |
DOIs | |
Publication status | Published - 3 May 2021 |
Projects
- 1 Finished
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Switching On and Powering Molecular Machines: Ultrafast Dynamics of Photoswitches
Engineering and Physical Sciences Research Council
1/08/18 → 31/07/22
Project: Research