Rational Molecular Design for Deep-Blue Thermally Activated Delayed Fluorescence Emitters

Chin Yiu Chan; Lin Song Cui; Jong Uk Kim; Hajime Nakanotani; Chihaya Adachi

doi:10.1002/adfm.201706023

Rational Molecular Design for Deep-Blue Thermally Activated Delayed Fluorescence Emitters

Chin Yiu Chan, Lin Song Cui, Jong Uk Kim, Hajime Nakanotani, Chihaya Adachi^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

220 Citations (Scopus)

Abstract

By simple modification of the functional groups on the donor unit, the thermally activated delayed fluorescence (TADF) properties of emitters can easily be manipulated. A series of deep blue to blue emissive TADF derivatives is developed, capable of deep-blue emissions from 403 to 460 nm in toluene. Deep-blue organic light-emitting diodes (OLEDs) based on this series of TADF emitters are fabricated, resulting in an electroluminescence peak at 428 nm and a high external quantum efficiency of up to 10.3%. One deep-blue OLED has achieved the commission internationale de l'eclairage (CIE) coordinates of (0.156, 0.063), which is among the best reported TADF performances for deep-blue OLEDs with CIE_y < 0.07. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Original language	English
Article number	1706023
Journal	Advanced Functional Materials
Volume	28
Issue number	11
Online published	17 Jan 2018
DOIs	https://doi.org/10.1002/adfm.201706023
Publication status	Published - 14 Mar 2018
Externally published	Yes

Funding

This work was supported financially by the Program for Building Regional Innovation Ecosystems of the Ministry of Education, Culture, Sports, Science and Technology, Japan, and JST ERATO Grant No. JPMJER1305, Japan, and Kyulux Inc.

Research Keywords

deep-blue fluorescence
hyperfluorescence
organic light-emitting diodes
thermal activated delayed fluorescence

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title = "Rational Molecular Design for Deep-Blue Thermally Activated Delayed Fluorescence Emitters",

abstract = "By simple modification of the functional groups on the donor unit, the thermally activated delayed fluorescence (TADF) properties of emitters can easily be manipulated. A series of deep blue to blue emissive TADF derivatives is developed, capable of deep-blue emissions from 403 to 460 nm in toluene. Deep-blue organic light-emitting diodes (OLEDs) based on this series of TADF emitters are fabricated, resulting in an electroluminescence peak at 428 nm and a high external quantum efficiency of up to 10.3%. One deep-blue OLED has achieved the commission internationale de l'eclairage (CIE) coordinates of (0.156, 0.063), which is among the best reported TADF performances for deep-blue OLEDs with CIEy < 0.07. {\textcopyright} 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

keywords = "deep-blue fluorescence, hyperfluorescence, organic light-emitting diodes, thermal activated delayed fluorescence",

author = "Chan, {Chin Yiu} and Cui, {Lin Song} and Kim, {Jong Uk} and Hajime Nakanotani and Chihaya Adachi",

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T1 - Rational Molecular Design for Deep-Blue Thermally Activated Delayed Fluorescence Emitters

AU - Chan, Chin Yiu

AU - Cui, Lin Song

AU - Kim, Jong Uk

AU - Nakanotani, Hajime

AU - Adachi, Chihaya

PY - 2018/3/14

Y1 - 2018/3/14

N2 - By simple modification of the functional groups on the donor unit, the thermally activated delayed fluorescence (TADF) properties of emitters can easily be manipulated. A series of deep blue to blue emissive TADF derivatives is developed, capable of deep-blue emissions from 403 to 460 nm in toluene. Deep-blue organic light-emitting diodes (OLEDs) based on this series of TADF emitters are fabricated, resulting in an electroluminescence peak at 428 nm and a high external quantum efficiency of up to 10.3%. One deep-blue OLED has achieved the commission internationale de l'eclairage (CIE) coordinates of (0.156, 0.063), which is among the best reported TADF performances for deep-blue OLEDs with CIEy < 0.07. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

AB - By simple modification of the functional groups on the donor unit, the thermally activated delayed fluorescence (TADF) properties of emitters can easily be manipulated. A series of deep blue to blue emissive TADF derivatives is developed, capable of deep-blue emissions from 403 to 460 nm in toluene. Deep-blue organic light-emitting diodes (OLEDs) based on this series of TADF emitters are fabricated, resulting in an electroluminescence peak at 428 nm and a high external quantum efficiency of up to 10.3%. One deep-blue OLED has achieved the commission internationale de l'eclairage (CIE) coordinates of (0.156, 0.063), which is among the best reported TADF performances for deep-blue OLEDs with CIEy < 0.07. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

KW - deep-blue fluorescence

KW - hyperfluorescence

KW - organic light-emitting diodes

KW - thermal activated delayed fluorescence

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M3 - RGC 21 - Publication in refereed journal

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JO - Advanced Functional Materials

JF - Advanced Functional Materials

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ER -

Rational Molecular Design for Deep-Blue Thermally Activated Delayed Fluorescence Emitters

Abstract

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Research Keywords

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