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Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
Published on: October 24, 2017
Photostable and highly emissive glassy organic dots exhibiting thermally activated delayed fluorescence
Youichi Tsuchiya1, Koudai Ikesue, Hajime Nakanotani
1Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan. tsuchiya@opera.kyushu-u.ac.jp nakanotani@cstf.kyushu-u.ac.jp adachi@cstf.kyushu-u.ac.jp.
Abstract:
Organic nanoparticles (O-dots) with a high photoluminescence quantum yield (94%) and long-lived delayed emission (3.1 μs) originating from thermally activated delayed fluorescence (TADF) were developed as glassy state particles using an oil in water emulsion under high pressure (<20 bar). The TADF glassy O-dots exhibit not only good dispersibility and high photostability in water but also good uptake properties into living cells. The glassy O-dots will open new uses as organic emitters in biological applications.
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