Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 10, Issue 23, Pages 7463-+Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.9b03115
Keywords
-
Categories
Funding
- Ontario Graduate Scholarships
- U.S. National Science Foundation [CHE-1665375]
- University of Toronto
- Natural Sciences and Engineering Research Council of Canada (NSERC) [RGPIN-2017-06666]
- Canada Foundation for Innovation [JELF-35991]
- Ontario Research Fund [SIA-35991]
Ask authors/readers for more resources
We demonstrate that a structurally rigid, weakly coupled molecular dimer can replace traditional monomeric annihilators for triplet fusion upconversion (TUC) in solution by observing emitted photons (lambda = 540 nm) from a norbornyl-bridged tetracene homodimer following excitation of a triplet sensitizer at lambda = 730 nm. Intriguingly, steady-state spectroscopy, kinetic simulations, and Stern-Volmer quenching experiments show that the dimer exhibits qualitatively different photophysics than its parent monomer: it is less effective at diffusion-mediated triplet exciton transfer, but it fuses extracted triplets more efficiently. Our results support the development of composite triplet-fusion platforms that go beyond diffusion-mediated triplet extraction, ultimately circumventing the concentration dependence of solution-phase TUC.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available