Delayed Fluorescence and Amplified Chirality via Modified Substitution Position for Deep-red Circularly Polarized Organic Light Emitting-diodes

Lixun Zhu; Dan Liu; Kaiwen Wu; Guohua Xie; Zheng Zhao; Ben Zhong Tang

doi:10.1007/s40242-024-4123-4

Delayed Fluorescence and Amplified Chirality via Modified Substitution Position for Deep-red Circularly Polarized Organic Light Emitting-diodes

Lixun Zhu, Dan Liu, Kaiwen Wu, Guohua Xie^*, Zheng Zhao^*, Ben Zhong Tang^*

^*Corresponding author for this work

Department of Chemical and Biological Engineering

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

5 Citations (Scopus)

Abstract

Developing easily accessible deep-red/near-infrared circularly polarized emitters for practical organic light-emitting diodes remains a significant challenge. Here, a practical strategy has been proposed for developing deep-red circularly polarized delayed fluorescent emitters based on a novel chiral acceptor platform. By changing triphenylamine (TPA) substitution position from para to meta, R/S-M-TBBTCN demonstrated thermally activated delayed fluorescence (TADF) properties with a delayed lifetime of 6.6 µs that R/S-P-TBBTCN doesn’t have. Furthermore, R/S-M-TBBTCN showed a 65 nm red-shift in emission and a 10-fold enhancement in asymmetry factor (g_lum), compared with R/S-P-TBBTCN. The solution-processed nondoped circularly polarized organic light-emitting diodes (CP-OLEDs) based on R-M-TBBTCN display deep-red emission and 2.2% external quantum efficiency. (Figure presented.)

Original language	English
Pages (from-to)	657-663
Number of pages	7
Journal	Chemical Research in Chinese Universities
Volume	40
Issue number	4
DOIs	https://doi.org/10.1007/s40242-024-4123-4
Publication status	Published - Aug 2024

Bibliographical note

Publisher Copyright:
© Jilin University, The Editorial Department of Chemical Research in Chinese Universities and Springer-Verlag GmbH 2024.

Keywords

Amplified chirality
Binaphthol based chiral acceptor
Deep-red circularly polarized organic light emitting-diode

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10.1007/s40242-024-4123-4

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@article{e6783a9ad9d54be683ce8c68eabbf1eb,

title = "Delayed Fluorescence and Amplified Chirality via Modified Substitution Position for Deep-red Circularly Polarized Organic Light Emitting-diodes",

abstract = "Developing easily accessible deep-red/near-infrared circularly polarized emitters for practical organic light-emitting diodes remains a significant challenge. Here, a practical strategy has been proposed for developing deep-red circularly polarized delayed fluorescent emitters based on a novel chiral acceptor platform. By changing triphenylamine (TPA) substitution position from para to meta, R/S-M-TBBTCN demonstrated thermally activated delayed fluorescence (TADF) properties with a delayed lifetime of 6.6 µs that R/S-P-TBBTCN doesn{\textquoteright}t have. Furthermore, R/S-M-TBBTCN showed a 65 nm red-shift in emission and a 10-fold enhancement in asymmetry factor (glum), compared with R/S-P-TBBTCN. The solution-processed nondoped circularly polarized organic light-emitting diodes (CP-OLEDs) based on R-M-TBBTCN display deep-red emission and 2.2\% external quantum efficiency. (Figure presented.)",

keywords = "Amplified chirality, Binaphthol based chiral acceptor, Deep-red circularly polarized organic light emitting-diode",

author = "Lixun Zhu and Dan Liu and Kaiwen Wu and Guohua Xie and Zheng Zhao and Tang, \{Ben Zhong\}",

note = "Publisher Copyright: {\textcopyright} Jilin University, The Editorial Department of Chemical Research in Chinese Universities and Springer-Verlag GmbH 2024.",

year = "2024",

month = aug,

doi = "10.1007/s40242-024-4123-4",

language = "English",

volume = "40",

pages = "657--663",

journal = "Chemical Research in Chinese Universities",

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publisher = "Springer Science and Business Media Deutschland GmbH",

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TY - JOUR

T1 - Delayed Fluorescence and Amplified Chirality via Modified Substitution Position for Deep-red Circularly Polarized Organic Light Emitting-diodes

AU - Zhu, Lixun

AU - Liu, Dan

AU - Wu, Kaiwen

AU - Xie, Guohua

AU - Zhao, Zheng

AU - Tang, Ben Zhong

N1 - Publisher Copyright: © Jilin University, The Editorial Department of Chemical Research in Chinese Universities and Springer-Verlag GmbH 2024.

PY - 2024/8

Y1 - 2024/8

N2 - Developing easily accessible deep-red/near-infrared circularly polarized emitters for practical organic light-emitting diodes remains a significant challenge. Here, a practical strategy has been proposed for developing deep-red circularly polarized delayed fluorescent emitters based on a novel chiral acceptor platform. By changing triphenylamine (TPA) substitution position from para to meta, R/S-M-TBBTCN demonstrated thermally activated delayed fluorescence (TADF) properties with a delayed lifetime of 6.6 µs that R/S-P-TBBTCN doesn’t have. Furthermore, R/S-M-TBBTCN showed a 65 nm red-shift in emission and a 10-fold enhancement in asymmetry factor (glum), compared with R/S-P-TBBTCN. The solution-processed nondoped circularly polarized organic light-emitting diodes (CP-OLEDs) based on R-M-TBBTCN display deep-red emission and 2.2% external quantum efficiency. (Figure presented.)

AB - Developing easily accessible deep-red/near-infrared circularly polarized emitters for practical organic light-emitting diodes remains a significant challenge. Here, a practical strategy has been proposed for developing deep-red circularly polarized delayed fluorescent emitters based on a novel chiral acceptor platform. By changing triphenylamine (TPA) substitution position from para to meta, R/S-M-TBBTCN demonstrated thermally activated delayed fluorescence (TADF) properties with a delayed lifetime of 6.6 µs that R/S-P-TBBTCN doesn’t have. Furthermore, R/S-M-TBBTCN showed a 65 nm red-shift in emission and a 10-fold enhancement in asymmetry factor (glum), compared with R/S-P-TBBTCN. The solution-processed nondoped circularly polarized organic light-emitting diodes (CP-OLEDs) based on R-M-TBBTCN display deep-red emission and 2.2% external quantum efficiency. (Figure presented.)

KW - Amplified chirality

KW - Binaphthol based chiral acceptor

KW - Deep-red circularly polarized organic light emitting-diode

UR - https://www.webofscience.com/wos/woscc/full-record/WOS:001263497400001

UR - https://openalex.org/W4400381756

UR - https://www.scopus.com/pages/publications/85197667258

U2 - 10.1007/s40242-024-4123-4

DO - 10.1007/s40242-024-4123-4

M3 - Journal Article

SN - 1005-9040

VL - 40

SP - 657

EP - 663

JO - Chemical Research in Chinese Universities

JF - Chemical Research in Chinese Universities

IS - 4

ER -

Delayed Fluorescence and Amplified Chirality via Modified Substitution Position for Deep-red Circularly Polarized Organic Light Emitting-diodes

Abstract

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Keywords

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