Lock-and-Key Exciplexes for Thermally Activated Delayed Fluorescence
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 g...
Main Authors: | , , , , , , , , , , , |
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Other Authors: | , |
Format: | Article |
Language: | English |
Published: |
Georg Thieme Verlag KG,
2020-12-08T15:42:58Z.
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Subjects: | |
Online Access: | Get fulltext |
Summary: | 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. Air Force Office of Scientific Research (Grant FA9550-18-1-0341) Department of Energy (Grant DE-FG02-07ER46474) NIH (Grant GM112272) |
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