Projects per year
Abstract
Unlike conventional thermally activated delayed fluorescence chromophores, boron-centered azatriangulene-like molecules combine a small excited-state singlet-triplet energy gap with high oscillator strengths and minor reorganization energies. Here, using highly correlated quantum-chemical calculations, we report this is driven by short-range reorganization of the electron density taking place upon electronic excitation of these multi-resonant structures. Based on this finding, we design a series of π-extended boron- and nitrogen-doped nanographenes as promising candidates for efficient thermally activated delayed fluorescence emitters with concomitantly decreased singlet-triplet energy gaps, improved oscillator strengths and core rigidity compared to previously reported structures, permitting both emission color purity and tunability across the visible spectrum.
Original language | English |
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Article number | 597 |
Number of pages | 5 |
Journal | Nature Communications |
Volume | 10 |
DOIs | |
Publication status | Published - 5 Feb 2019 |
Fingerprint
Dive into the research topics of 'Highly emissive excitons with reduced exchange energy in thermally activated delayed fluorescent molecules'. Together they form a unique fingerprint.Projects
- 2 Finished
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TADF Emitters for OLEDs - Eli Zysman: TADF Emitters for OLEDs
Zysman-Colman, E. (PI)
1/03/17 → 31/03/21
Project: Standard
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Blue-Emitting TADF Materials: Blue-Emitting TADF Materials for OLEDs Based on a Lewis Acid-Containing Acceptor
Zysman-Colman, E. (PI)
1/08/16 → 30/04/22
Project: Standard
Profiles
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Eli Zysman-Colman
- School of Chemistry - Director of Impact, Professor of Optoelectronic Materials
- Centre for Energy Ethics
- Organic Semiconductor Centre
- EaSTCHEM
Person: Academic