Lock-and-Key Exciplexes for Thermally Activated Delayed Fluorescence
Abstract
We combine synthetic supramolecular chemistry and materials science to develop novel exciplexes for thermally activated delayed fluorescence. Our approach starts from a bowl-shaped acceptor molecule for which we synthesize tailor-made donors that bind in a lock-and-key fashion. The donor design is guided by extensive density functional theory calculations of three independent donor families. The investigation of a large number of custom-synthesized donors allows us to derive empirical relationships for the prediction of the exciplex emission color. Incorporated within organic light-emitting devices, the lock-and-key exciplexes yield external quantum efficiencies of up to 5.4%, with potentially tunable emission color across the blue and green visible spectrum.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 01, 2020
- Source ID
- 10.1055/s-0039-3402059
Entities
People
- Constantin-christian A. Voll
- Georgios Markopoulos
- Grace G D Han
- Graham T. Sazama
- Jens U. Engelhart
- Marc A Baldo
- Matthew Welborn
- Sébastien Rochat
- Timothy M. Swager
- Ting-an Lin
- Tony C. Wu
- Troy Van Voorhis
Organizations
- Air Force Office of Scientific Research
- German Research Foundation
- Massachusetts Institute of Technology
- Michigan Department of Licensing and Regulatory Affairs
- National Institutes of Health
- Swiss National Science Foundation