Comparative study of thermally activated delayed fluorescent properties of donor-acceptor and donor-acceptor-donor architectures based on phenoxazine and dibenzo[a,j]phenazine

Saika Izumi; Prasannamani Govindharaj; Anna Drewniak; Paola Zimmermann Crocomo; Satoshi Minakata; Leonardo Evaristo de Sousa; Piotr de Silva; Przemyslaw Data; Youhei Takeda

doi:10.3762/bjoc.18.48

Comparative study of thermally activated delayed fluorescent properties of donor-acceptor and donor-acceptor-donor architectures based on phenoxazine and dibenzo[a,j]phenazine

Saika Izumi, Prasannamani Govindharaj, Anna Drewniak, Paola Zimmermann Crocomo, Satoshi Minakata, Leonardo Evaristo de Sousa, Piotr de Silva^*, Przemyslaw Data^*, Youhei Takeda^*

^*Corresponding author for this work

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

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Abstract

A new thermally activated delayed fluorescence (TADF) compound based on a donor-acceptor (D-A) architecture (D = phenoxazine; A = dibenzo[a,j]phenazine) has been developed, and its photophysical properties were characterized. The D-A compound is applicable as an emitting material for efficient organic light-emitting diodes (OLEDs), and its external quantum efficiency (EQE) exceeds the theoretical maximum of those with prompt fluorescent emitters. Most importantly, comparative study of the D-A molecule and its D-A-D counterpart from the viewpoints of the experiments and theoretical calculations revealed the effect of the number of the electron donor on the thermally activated delayed fluorescent behavior.

Original language	English
Journal	Beilstein Journal of Organic Chemistry
Volume	18
Pages (from-to)	459-468
Number of pages	10
ISSN	2195-951X
DOIs	https://doi.org/10.3762/bjoc.18.48
Publication status	Published - 2022

Keywords

Charge-transfer
Dibenzophenazine
Donor–acceptor
Organic light-emitting diodes
Thermally activated delayed fluorescence

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Izumi, S., Govindharaj, P., Drewniak, A., Crocomo, P. Z., Minakata, S., de Sousa, L. E., de Silva, P., Data, P., & Takeda, Y. (2022). Comparative study of thermally activated delayed fluorescent properties of donor-acceptor and donor-acceptor-donor architectures based on phenoxazine and dibenzo[a,j]phenazine. Beilstein Journal of Organic Chemistry, 18, 459-468. https://doi.org/10.3762/bjoc.18.48

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title = "Comparative study of thermally activated delayed fluorescent properties of donor-acceptor and donor-acceptor-donor architectures based on phenoxazine and dibenzo[a,j]phenazine",

abstract = "A new thermally activated delayed fluorescence (TADF) compound based on a donor-acceptor (D-A) architecture (D = phenoxazine; A = dibenzo[a,j]phenazine) has been developed, and its photophysical properties were characterized. The D-A compound is applicable as an emitting material for efficient organic light-emitting diodes (OLEDs), and its external quantum efficiency (EQE) exceeds the theoretical maximum of those with prompt fluorescent emitters. Most importantly, comparative study of the D-A molecule and its D-A-D counterpart from the viewpoints of the experiments and theoretical calculations revealed the effect of the number of the electron donor on the thermally activated delayed fluorescent behavior.",

keywords = "Charge-transfer, Dibenzophenazine, Donor–acceptor, Organic light-emitting diodes, Thermally activated delayed fluorescence",

author = "Saika Izumi and Prasannamani Govindharaj and Anna Drewniak and Crocomo, {Paola Zimmermann} and Satoshi Minakata and {de Sousa}, {Leonardo Evaristo} and {de Silva}, Piotr and Przemyslaw Data and Youhei Takeda",

year = "2022",

doi = "10.3762/bjoc.18.48",

language = "English",

volume = "18",

pages = "459--468",

journal = "Beilstein Journal of Organic Chemistry",

issn = "2195-951X",

publisher = "Beilstein - Institut zur Foerderung der Chemischen Wissenschaften",

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Izumi, S, Govindharaj, P, Drewniak, A, Crocomo, PZ, Minakata, S, de Sousa, LE , de Silva, P, Data, P & Takeda, Y 2022, 'Comparative study of thermally activated delayed fluorescent properties of donor-acceptor and donor-acceptor-donor architectures based on phenoxazine and dibenzo[a,j]phenazine', Beilstein Journal of Organic Chemistry, vol. 18, pp. 459-468. https://doi.org/10.3762/bjoc.18.48

Comparative study of thermally activated delayed fluorescent properties of donor-acceptor and donor-acceptor-donor architectures based on phenoxazine and dibenzo[a,j]phenazine. / Izumi, Saika; Govindharaj, Prasannamani; Drewniak, Anna et al.
In: Beilstein Journal of Organic Chemistry, Vol. 18, 2022, p. 459-468.

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

TY - JOUR

T1 - Comparative study of thermally activated delayed fluorescent properties of donor-acceptor and donor-acceptor-donor architectures based on phenoxazine and dibenzo[a,j]phenazine

AU - Izumi, Saika

AU - Govindharaj, Prasannamani

AU - Drewniak, Anna

AU - Crocomo, Paola Zimmermann

AU - Minakata, Satoshi

AU - de Sousa, Leonardo Evaristo

AU - de Silva, Piotr

AU - Data, Przemyslaw

AU - Takeda, Youhei

PY - 2022

Y1 - 2022

N2 - A new thermally activated delayed fluorescence (TADF) compound based on a donor-acceptor (D-A) architecture (D = phenoxazine; A = dibenzo[a,j]phenazine) has been developed, and its photophysical properties were characterized. The D-A compound is applicable as an emitting material for efficient organic light-emitting diodes (OLEDs), and its external quantum efficiency (EQE) exceeds the theoretical maximum of those with prompt fluorescent emitters. Most importantly, comparative study of the D-A molecule and its D-A-D counterpart from the viewpoints of the experiments and theoretical calculations revealed the effect of the number of the electron donor on the thermally activated delayed fluorescent behavior.

AB - A new thermally activated delayed fluorescence (TADF) compound based on a donor-acceptor (D-A) architecture (D = phenoxazine; A = dibenzo[a,j]phenazine) has been developed, and its photophysical properties were characterized. The D-A compound is applicable as an emitting material for efficient organic light-emitting diodes (OLEDs), and its external quantum efficiency (EQE) exceeds the theoretical maximum of those with prompt fluorescent emitters. Most importantly, comparative study of the D-A molecule and its D-A-D counterpart from the viewpoints of the experiments and theoretical calculations revealed the effect of the number of the electron donor on the thermally activated delayed fluorescent behavior.

KW - Charge-transfer

KW - Dibenzophenazine

KW - Donor–acceptor

KW - Organic light-emitting diodes

KW - Thermally activated delayed fluorescence

U2 - 10.3762/bjoc.18.48

DO - 10.3762/bjoc.18.48

M3 - Journal article

C2 - 35558649

SN - 2195-951X

VL - 18

SP - 459

EP - 468

JO - Beilstein Journal of Organic Chemistry

JF - Beilstein Journal of Organic Chemistry

ER -

Comparative study of thermally activated delayed fluorescent properties of donor-acceptor and donor-acceptor-donor architectures based on phenoxazine and dibenzo[a,j]phenazine

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Keywords

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