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

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

219 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 - 2017

All Science Journal Classification (ASJC) codes

Catalysis
Chemistry(all)

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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).",

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AU - Kim, Jong U.k.

AU - Nakanotani, Hajime

AU - Adachi, Chihaya

PY - 2017

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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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