Evaluating effect of donors and their linking position on photophysical properties of 2-phenylfuro[2,3-b]quinoxaline-based donor-π-acceptor molecules

Chuan Ming Wu; Yi Xiang Li; Ze Yu; Mei Ting Luo; Dongdong Wang; Xin Ye Wang; Huili Ma

doi:10.1016/j.cplett.2022.139529

Evaluating effect of donors and their linking position on photophysical properties of 2-phenylfuro[2,3-b]quinoxaline-based donor-π-acceptor molecules

Chuan Ming Wu, Yi Xiang Li, Ze Yu, Mei Ting Luo, Dongdong Wang, Xin Ye Wang, Huili Ma

SCHOOL OF FLEXIBLE ELECTRONICS(FUTURE TECHNOLOGIES)|INSTITUTE OF ADVANCED MATERIALS(IAM)

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

Abstract

Two linear D-π-A molecules, pCz-FQ and TPA-FQ, and one folded molecule, oCz-FQ were designed using 2-phenylfuro[2,3-b]quinoxaline (FQ) and carbazole(Cz)/diphenylamine (dPA) as acceptor and donor, respectively, and their photophysical properties were investigated. As donor changed from dPA to Cz, the emission color is blue-shifted, and the S1-T1 energy gap increased from 0.50 eV to 0.73 eV. The theory analysis revealed the T₂-T₁ energy gap could be enlarged to ∼0.89 eV for donor change. As linking mode between the FQ and Cz is changed from para-linkage to ortho-linkage of benzene ring, the T1-S1 spin-orbital coupling value of oCz-FQ is five times improvement.

Original language	English
Article number	139529
Journal	Chemical Physics Letters
Volume	795
DOIs	https://doi.org/10.1016/j.cplett.2022.139529
State	Published - 16 May 2022

Keywords

2-phenylfuro[23-b]quinoxaline
Folded molecule
Linear molecule
OLEDs

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10.1016/j.cplett.2022.139529

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@article{3d49029324cd4c57bc6b996239153ec8,

title = "Evaluating effect of donors and their linking position on photophysical properties of 2-phenylfuro[2,3-b]quinoxaline-based donor-π-acceptor molecules",

abstract = "Two linear D-π-A molecules, pCz-FQ and TPA-FQ, and one folded molecule, oCz-FQ were designed using 2-phenylfuro[2,3-b]quinoxaline (FQ) and carbazole(Cz)/diphenylamine (dPA) as acceptor and donor, respectively, and their photophysical properties were investigated. As donor changed from dPA to Cz, the emission color is blue-shifted, and the S1-T1 energy gap increased from 0.50 eV to 0.73 eV. The theory analysis revealed the T2-T1 energy gap could be enlarged to ∼0.89 eV for donor change. As linking mode between the FQ and Cz is changed from para-linkage to ortho-linkage of benzene ring, the T1-S1 spin-orbital coupling value of oCz-FQ is five times improvement.",

keywords = "2-phenylfuro[23-b]quinoxaline, Folded molecule, Linear molecule, OLEDs",

author = "Wu, {Chuan Ming} and Li, {Yi Xiang} and Ze Yu and Luo, {Mei Ting} and Dongdong Wang and Wang, {Xin Ye} and Huili Ma",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = may,

day = "16",

doi = "10.1016/j.cplett.2022.139529",

language = "英语",

volume = "795",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Evaluating effect of donors and their linking position on photophysical properties of 2-phenylfuro[2,3-b]quinoxaline-based donor-π-acceptor molecules

AU - Wu, Chuan Ming

AU - Li, Yi Xiang

AU - Yu, Ze

AU - Luo, Mei Ting

AU - Wang, Dongdong

AU - Wang, Xin Ye

AU - Ma, Huili

PY - 2022/5/16

Y1 - 2022/5/16

N2 - Two linear D-π-A molecules, pCz-FQ and TPA-FQ, and one folded molecule, oCz-FQ were designed using 2-phenylfuro[2,3-b]quinoxaline (FQ) and carbazole(Cz)/diphenylamine (dPA) as acceptor and donor, respectively, and their photophysical properties were investigated. As donor changed from dPA to Cz, the emission color is blue-shifted, and the S1-T1 energy gap increased from 0.50 eV to 0.73 eV. The theory analysis revealed the T2-T1 energy gap could be enlarged to ∼0.89 eV for donor change. As linking mode between the FQ and Cz is changed from para-linkage to ortho-linkage of benzene ring, the T1-S1 spin-orbital coupling value of oCz-FQ is five times improvement.

AB - Two linear D-π-A molecules, pCz-FQ and TPA-FQ, and one folded molecule, oCz-FQ were designed using 2-phenylfuro[2,3-b]quinoxaline (FQ) and carbazole(Cz)/diphenylamine (dPA) as acceptor and donor, respectively, and their photophysical properties were investigated. As donor changed from dPA to Cz, the emission color is blue-shifted, and the S1-T1 energy gap increased from 0.50 eV to 0.73 eV. The theory analysis revealed the T2-T1 energy gap could be enlarged to ∼0.89 eV for donor change. As linking mode between the FQ and Cz is changed from para-linkage to ortho-linkage of benzene ring, the T1-S1 spin-orbital coupling value of oCz-FQ is five times improvement.

KW - 2-phenylfuro[23-b]quinoxaline

KW - Folded molecule

KW - Linear molecule

KW - OLEDs

UR - http://www.scopus.com/inward/record.url?scp=85126310128&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2022.139529

DO - 10.1016/j.cplett.2022.139529

M3 - 文章

AN - SCOPUS:85126310128

SN - 0009-2614

VL - 795

JO - Chemical Physics Letters

JF - Chemical Physics Letters

M1 - 139529

ER -

Evaluating effect of donors and their linking position on photophysical properties of 2-phenylfuro[2,3-b]quinoxaline-based donor-π-acceptor molecules

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Keywords

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