Wei Q, Kleine P, Karpov Y, Qiu X, Komber H, Sahre K, Kiriy A, Lygaitis R, Lenk S, Reineke S, Voit B (2017)
Publication Type: Journal article
Publication year: 2017
Book Volume: 27
Article Number: 1605051
Journal Issue: 7
Thermally activated delayed fluorescence (TADF)-type compounds have great potential as emitter molecules in organic light-emitting diodes, allowing for electrofluorescence with 100% internal quantum efficiency. In small molecules, TADF is achieved through the formation of intramolecular charge-transfer states. The only design limitation is the requirement that donor and acceptor entities spatially decouple the highest occupied and lowest unoccupied molecular orbitals, respectively, to minimize exchange splitting. The development of polymeric TADF emitters, on the contrary, has seen comparably small progress and those are typically built up from monomeric units that show promising TADF properties in small molecule studies beforehand. By contrast, herein, a way to achieve TADF properties in cyclic oligomers and polymers composed of non-TADF building blocks is shown. Due to a strongly decreased energy splitting of the polymer with respect to the individual repeating unit between the lowest singlet and triplet excited state (ΔE
APA:
Wei, Q., Kleine, P., Karpov, Y., Qiu, X., Komber, H., Sahre, K.,... Voit, B. (2017). Conjugation-Induced Thermally Activated Delayed Fluorescence (TADF): From Conventional Non-TADF Units to TADF-Active Polymers. Advanced Functional Materials, 27(7). https://doi.org/10.1002/adfm.201605051
MLA:
Wei, Qiang, et al. "Conjugation-Induced Thermally Activated Delayed Fluorescence (TADF): From Conventional Non-TADF Units to TADF-Active Polymers." Advanced Functional Materials 27.7 (2017).
BibTeX: Download