Molecular engineering of donor moiety of donor-acceptor structure for management of photophysical properties and device performances

Seung Gun Yoo; Wook Song; Jun Yeob Lee

doi:10.1016/j.dyepig.2016.01.021

Molecular engineering of donor moiety of donor-acceptor structure for management of photophysical properties and device performances

Seung Gun Yoo
, Wook Song
, Jun Yeob Lee

Department of Chemical Engineering

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

20 Scopus citations

Abstract

Acridine and carbazole derived electron donors, 8,8-dimethyl-5-phenyl-8,13-dihydro-5H-indolo[2,3-c]acridine (4IA) and 13,13-dimethyl-11-phenyl-11,13-dihydro-5H-indole[2,3-b]acridine(3IA), were synthesized as strong donor moieties of thermally activated delayed fluorescent (TADF) emitters. The new donor moiety was included in the molecular structure of diphenyltriazine based TADF emitter to study the effect of geometrical structure of the donor on the photophysical and device characteristics of TADF emitters. The 4IA donor was better than the 3IA donor for small singlet-triplet energy splitting and TADF emission. TADF behavior was observed only in the 4IA based TADF emitter due to geometrical structure. A TADF emitter having the 4IA based donor moiety exhibited a blue color coordinate of (0.21, 0.31) and a quantum efficiency of 13.7%.

Original language	English
Pages (from-to)	201-208
Number of pages	8
Journal	Dyes and Pigments
Volume	128
DOIs	https://doi.org/10.1016/j.dyepig.2016.01.021
State	Published - May 2016

Keywords

Acridine
Blue device
Carbazole
Delayed fluorescence
Diphenyltriazine
Donor

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10.1016/j.dyepig.2016.01.021

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@article{f132ad0eca324fb3a32fde9251ba0352,

title = "Molecular engineering of donor moiety of donor-acceptor structure for management of photophysical properties and device performances",

abstract = "Acridine and carbazole derived electron donors, 8,8-dimethyl-5-phenyl-8,13-dihydro-5H-indolo[2,3-c]acridine (4IA) and 13,13-dimethyl-11-phenyl-11,13-dihydro-5H-indole[2,3-b]acridine(3IA), were synthesized as strong donor moieties of thermally activated delayed fluorescent (TADF) emitters. The new donor moiety was included in the molecular structure of diphenyltriazine based TADF emitter to study the effect of geometrical structure of the donor on the photophysical and device characteristics of TADF emitters. The 4IA donor was better than the 3IA donor for small singlet-triplet energy splitting and TADF emission. TADF behavior was observed only in the 4IA based TADF emitter due to geometrical structure. A TADF emitter having the 4IA based donor moiety exhibited a blue color coordinate of (0.21, 0.31) and a quantum efficiency of 13.7\%.",

keywords = "Acridine, Blue device, Carbazole, Delayed fluorescence, Diphenyltriazine, Donor",

author = "Yoo, \{Seung Gun\} and Wook Song and Lee, \{Jun Yeob\}",

year = "2016",

month = may,

doi = "10.1016/j.dyepig.2016.01.021",

language = "English",

volume = "128",

pages = "201--208",

journal = "Dyes and Pigments",

issn = "0143-7208",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Molecular engineering of donor moiety of donor-acceptor structure for management of photophysical properties and device performances

AU - Yoo, Seung Gun

AU - Song, Wook

AU - Lee, Jun Yeob

PY - 2016/5

Y1 - 2016/5

N2 - Acridine and carbazole derived electron donors, 8,8-dimethyl-5-phenyl-8,13-dihydro-5H-indolo[2,3-c]acridine (4IA) and 13,13-dimethyl-11-phenyl-11,13-dihydro-5H-indole[2,3-b]acridine(3IA), were synthesized as strong donor moieties of thermally activated delayed fluorescent (TADF) emitters. The new donor moiety was included in the molecular structure of diphenyltriazine based TADF emitter to study the effect of geometrical structure of the donor on the photophysical and device characteristics of TADF emitters. The 4IA donor was better than the 3IA donor for small singlet-triplet energy splitting and TADF emission. TADF behavior was observed only in the 4IA based TADF emitter due to geometrical structure. A TADF emitter having the 4IA based donor moiety exhibited a blue color coordinate of (0.21, 0.31) and a quantum efficiency of 13.7%.

AB - Acridine and carbazole derived electron donors, 8,8-dimethyl-5-phenyl-8,13-dihydro-5H-indolo[2,3-c]acridine (4IA) and 13,13-dimethyl-11-phenyl-11,13-dihydro-5H-indole[2,3-b]acridine(3IA), were synthesized as strong donor moieties of thermally activated delayed fluorescent (TADF) emitters. The new donor moiety was included in the molecular structure of diphenyltriazine based TADF emitter to study the effect of geometrical structure of the donor on the photophysical and device characteristics of TADF emitters. The 4IA donor was better than the 3IA donor for small singlet-triplet energy splitting and TADF emission. TADF behavior was observed only in the 4IA based TADF emitter due to geometrical structure. A TADF emitter having the 4IA based donor moiety exhibited a blue color coordinate of (0.21, 0.31) and a quantum efficiency of 13.7%.

KW - Acridine

KW - Blue device

KW - Carbazole

KW - Delayed fluorescence

KW - Diphenyltriazine

KW - Donor

UR - https://www.scopus.com/pages/publications/84958528082

U2 - 10.1016/j.dyepig.2016.01.021

DO - 10.1016/j.dyepig.2016.01.021

M3 - Article

AN - SCOPUS:84958528082

SN - 0143-7208

VL - 128

SP - 201

EP - 208

JO - Dyes and Pigments

JF - Dyes and Pigments

ER -

Molecular engineering of donor moiety of donor-acceptor structure for management of photophysical properties and device performances

Abstract

Keywords

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