Controlling Singlet–Triplet Energy Splitting for Deep-Blue Thermally Activated Delayed Fluorescence Emitters

Lin Song Cui; Hiroko Nomura; Yan Geng; Jong U.k. Kim; Hajime Nakanotani; Chihaya Adachi

doi:10.1002/anie.201609459

Controlling Singlet–Triplet Energy Splitting for Deep-Blue Thermally Activated Delayed Fluorescence Emitters

Lin Song Cui, Hiroko Nomura, Yan Geng, Jong U.k. Kim, Hajime Nakanotani, Chihaya Adachi

Applied Chemistry

Research output: Contribution to journal › Article › peer-review

322 Citations (Scopus)

Abstract

The development of efficient metal-free organic emitters with thermally activated delayed fluorescence (TADF) properties for deep-blue emission is still challenging. A new family of deep-blue TADF emitters based on a donor–acceptor architecture has been developed. The electronic interaction between donor and acceptor plays a key role in the TADF mechanism. Deep-blue OLEDs fabricated with these TADF emitters achieved high external quantum efficiencies over 19.2 % with CIE coordinates of (0.148, 0.098).

Original language	English
Pages (from-to)	1571-1575
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	56
Issue number	6
DOIs	https://doi.org/10.1002/anie.201609459
Publication status	Published - Feb 2017

All Science Journal Classification (ASJC) codes

Catalysis
Chemistry(all)

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10.1002/anie.201609459

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title = "Controlling Singlet–Triplet Energy Splitting for Deep-Blue Thermally Activated Delayed Fluorescence Emitters",

abstract = "The development of efficient metal-free organic emitters with thermally activated delayed fluorescence (TADF) properties for deep-blue emission is still challenging. A new family of deep-blue TADF emitters based on a donor–acceptor architecture has been developed. The electronic interaction between donor and acceptor plays a key role in the TADF mechanism. Deep-blue OLEDs fabricated with these TADF emitters achieved high external quantum efficiencies over 19.2 % with CIE coordinates of (0.148, 0.098).",

author = "Cui, {Lin Song} and Hiroko Nomura and Yan Geng and Kim, {Jong U.k.} and Hajime Nakanotani and Chihaya Adachi",

note = "Funding Information: This work was supported financially by the Exploratory Research for Advanced Technology (ERATO) of Japan. The authors also acknowledge Ms. Nozomi Nakamura and Dr. Chen Zhong for their technical assistance with this research. Publisher Copyright: {\textcopyright} 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",

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AU - Geng, Yan

AU - Kim, Jong U.k.

AU - Nakanotani, Hajime

AU - Adachi, Chihaya

N1 - Funding Information: This work was supported financially by the Exploratory Research for Advanced Technology (ERATO) of Japan. The authors also acknowledge Ms. Nozomi Nakamura and Dr. Chen Zhong for their technical assistance with this research. Publisher Copyright: © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

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N2 - The development of efficient metal-free organic emitters with thermally activated delayed fluorescence (TADF) properties for deep-blue emission is still challenging. A new family of deep-blue TADF emitters based on a donor–acceptor architecture has been developed. The electronic interaction between donor and acceptor plays a key role in the TADF mechanism. Deep-blue OLEDs fabricated with these TADF emitters achieved high external quantum efficiencies over 19.2 % with CIE coordinates of (0.148, 0.098).

AB - The development of efficient metal-free organic emitters with thermally activated delayed fluorescence (TADF) properties for deep-blue emission is still challenging. A new family of deep-blue TADF emitters based on a donor–acceptor architecture has been developed. The electronic interaction between donor and acceptor plays a key role in the TADF mechanism. Deep-blue OLEDs fabricated with these TADF emitters achieved high external quantum efficiencies over 19.2 % with CIE coordinates of (0.148, 0.098).

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Controlling Singlet–Triplet Energy Splitting for Deep-Blue Thermally Activated Delayed Fluorescence Emitters

Abstract

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