Sensitivity of the hidden TADF to the linking topology of di-tert-butyl-carbazolyl and benzonitrile moieties in the molecules of emitters or hosts intended for efficient blue OLEDs

Chia Hsun Chen; Kun Rong Lin; Chi Feng Lin; Hryhorii Starykov; Audrius Bucinskas; Dalius Gudeika; Oleksandr Bezvikonnyi; Jurate Simokaitiene; Dmytro Volyniuk; Juozas V. Grazulevicius; Jiun Haw Lee; Tien Lung Chiu

doi:10.1016/j.jphotochem.2023.114686

Sensitivity of the hidden TADF to the linking topology of di-tert-butyl-carbazolyl and benzonitrile moieties in the molecules of emitters or hosts intended for efficient blue OLEDs

Chia Hsun Chen
, Kun Rong Lin
, Chi Feng Lin
, Hryhorii Starykov
, Audrius Bucinskas
, Dalius Gudeika
, Oleksandr Bezvikonnyi
, Jurate Simokaitiene
, Dmytro Volyniuk
, Juozas V. Grazulevicius^*
, Jiun Haw Lee
, Tien Lung Chiu

^*Šī darba korespondējošais autors

National Taiwan University
National United University Taiwan
Kaunas University of Technology
Yuan Ze University

Zinātniskās darbības rezultāts: Devums žurnālam › Zinātniskais raksts (žurnālā) › koleģiāli recenzēts

2 Atsauces (Scopus)

Kopsavilkums

With the aim of detecting hidden thermally activated delayed fluorescence (TADF), six organic compounds were synthesized and characterized as emitters and hosts of blue organic light-emitting diodes (OLEDs). The effect of the linking topology of di-tert-butyl-carbazolyl and benzonitrile moieties in donor–acceptor-donor type molecules on device efficiencies was investigated. Just by altering the linking position of di-tert-butyl-carbazolyl moieties at benzonitrile fragment of the emitters and hosts of the blue TADF OLEDs, their maximum external quantum efficiencies (EQEs) can be changed from 1.13 to 5.17 % as well as from 13.8 to the record-high 22.8%. After the comprehensive investigations of the properties including the charge mobility measurements by time-of-flight technique, steady-state and time-resolved photoluminescence and electroluminescence studies, good correlation between EQE of OLEDs and the properties of the isomers with the differently linked donor and acceptor moieties were observed.

Oriģinālvaloda	Angļu
Raksta numurs	114686
Žurnāls	Journal of Photochemistry and Photobiology A: Chemistry
Sējums	440
DOIs	https://doi.org/10.1016/j.jphotochem.2023.114686
Publikācijas statuss	Publicēts - 1 jūn. 2023
Ārēji publicēts	Jā

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10.1016/j.jphotochem.2023.114686

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Chen, C. H., Lin, K. R., Lin, C. F., Starykov, H., Bucinskas, A., Gudeika, D., Bezvikonnyi, O., Simokaitiene, J., Volyniuk, D., Grazulevicius, J. V., Lee, J. H., & Chiu, T. L. (2023). Sensitivity of the hidden TADF to the linking topology of di-tert-butyl-carbazolyl and benzonitrile moieties in the molecules of emitters or hosts intended for efficient blue OLEDs. Journal of Photochemistry and Photobiology A: Chemistry, 440, Zinātniskais raksts 114686. https://doi.org/10.1016/j.jphotochem.2023.114686

@article{b287231213d34dddbe26bf4e5a6cf851,

title = "Sensitivity of the hidden TADF to the linking topology of di-tert-butyl-carbazolyl and benzonitrile moieties in the molecules of emitters or hosts intended for efficient blue OLEDs",

abstract = "With the aim of detecting hidden thermally activated delayed fluorescence (TADF), six organic compounds were synthesized and characterized as emitters and hosts of blue organic light-emitting diodes (OLEDs). The effect of the linking topology of di-tert-butyl-carbazolyl and benzonitrile moieties in donor–acceptor-donor type molecules on device efficiencies was investigated. Just by altering the linking position of di-tert-butyl-carbazolyl moieties at benzonitrile fragment of the emitters and hosts of the blue TADF OLEDs, their maximum external quantum efficiencies (EQEs) can be changed from 1.13 to 5.17 \% as well as from 13.8 to the record-high 22.8\%. After the comprehensive investigations of the properties including the charge mobility measurements by time-of-flight technique, steady-state and time-resolved photoluminescence and electroluminescence studies, good correlation between EQE of OLEDs and the properties of the isomers with the differently linked donor and acceptor moieties were observed.",

author = "Chen, \{Chia Hsun\} and Lin, \{Kun Rong\} and Lin, \{Chi Feng\} and Hryhorii Starykov and Audrius Bucinskas and Dalius Gudeika and Oleksandr Bezvikonnyi and Jurate Simokaitiene and Dmytro Volyniuk and Grazulevicius, \{Juozas V.\} and Lee, \{Jiun Haw\} and Chiu, \{Tien Lung\}",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2023",

month = jun,

day = "1",

doi = "10.1016/j.jphotochem.2023.114686",

language = "English",

volume = "440",

journal = "Journal of Photochemistry and Photobiology A: Chemistry",

issn = "1010-6030",

publisher = "Elsevier B.V.",

}

Chen, CH, Lin, KR, Lin, CF, Starykov, H, Bucinskas, A, Gudeika, D, Bezvikonnyi, O, Simokaitiene, J, Volyniuk, D, Grazulevicius, JV, Lee, JH & Chiu, TL 2023, 'Sensitivity of the hidden TADF to the linking topology of di-tert-butyl-carbazolyl and benzonitrile moieties in the molecules of emitters or hosts intended for efficient blue OLEDs', Journal of Photochemistry and Photobiology A: Chemistry, sēj. 440, 114686. https://doi.org/10.1016/j.jphotochem.2023.114686

Sensitivity of the hidden TADF to the linking topology of di-tert-butyl-carbazolyl and benzonitrile moieties in the molecules of emitters or hosts intended for efficient blue OLEDs. / Chen, Chia Hsun; Lin, Kun Rong; Lin, Chi Feng u.c.
(gadā): Journal of Photochemistry and Photobiology A: Chemistry, Sēj. 440, 114686, 01.06.2023.

Zinātniskās darbības rezultāts: Devums žurnālam › Zinātniskais raksts (žurnālā) › koleģiāli recenzēts

TY - JOUR

T1 - Sensitivity of the hidden TADF to the linking topology of di-tert-butyl-carbazolyl and benzonitrile moieties in the molecules of emitters or hosts intended for efficient blue OLEDs

AU - Chen, Chia Hsun

AU - Lin, Kun Rong

AU - Lin, Chi Feng

AU - Starykov, Hryhorii

AU - Bucinskas, Audrius

AU - Gudeika, Dalius

AU - Bezvikonnyi, Oleksandr

AU - Simokaitiene, Jurate

AU - Volyniuk, Dmytro

AU - Grazulevicius, Juozas V.

AU - Lee, Jiun Haw

AU - Chiu, Tien Lung

PY - 2023/6/1

Y1 - 2023/6/1

N2 - With the aim of detecting hidden thermally activated delayed fluorescence (TADF), six organic compounds were synthesized and characterized as emitters and hosts of blue organic light-emitting diodes (OLEDs). The effect of the linking topology of di-tert-butyl-carbazolyl and benzonitrile moieties in donor–acceptor-donor type molecules on device efficiencies was investigated. Just by altering the linking position of di-tert-butyl-carbazolyl moieties at benzonitrile fragment of the emitters and hosts of the blue TADF OLEDs, their maximum external quantum efficiencies (EQEs) can be changed from 1.13 to 5.17 % as well as from 13.8 to the record-high 22.8%. After the comprehensive investigations of the properties including the charge mobility measurements by time-of-flight technique, steady-state and time-resolved photoluminescence and electroluminescence studies, good correlation between EQE of OLEDs and the properties of the isomers with the differently linked donor and acceptor moieties were observed.

AB - With the aim of detecting hidden thermally activated delayed fluorescence (TADF), six organic compounds were synthesized and characterized as emitters and hosts of blue organic light-emitting diodes (OLEDs). The effect of the linking topology of di-tert-butyl-carbazolyl and benzonitrile moieties in donor–acceptor-donor type molecules on device efficiencies was investigated. Just by altering the linking position of di-tert-butyl-carbazolyl moieties at benzonitrile fragment of the emitters and hosts of the blue TADF OLEDs, their maximum external quantum efficiencies (EQEs) can be changed from 1.13 to 5.17 % as well as from 13.8 to the record-high 22.8%. After the comprehensive investigations of the properties including the charge mobility measurements by time-of-flight technique, steady-state and time-resolved photoluminescence and electroluminescence studies, good correlation between EQE of OLEDs and the properties of the isomers with the differently linked donor and acceptor moieties were observed.

UR - https://www.scopus.com/pages/publications/85150296273

U2 - 10.1016/j.jphotochem.2023.114686

DO - 10.1016/j.jphotochem.2023.114686

M3 - Article

AN - SCOPUS:85150296273

SN - 1010-6030

VL - 440

JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

M1 - 114686

ER -