Geometry control and chemical bond stabilization of thermally activated delayed fluorescent emitter to get extended lifetime in TADF OLEDS.

Ho Jung Lee; Si Hyun Han; Wan Pyo Hong; Ok Keun Song; Jun Yeob Lee

doi:10.1002/sdtp.12412

Geometry control and chemical bond stabilization of thermally activated delayed fluorescent emitter to get extended lifetime in TADF OLEDS.

Ho Jung Lee, Si Hyun Han, Wan Pyo Hong, Ok Keun Song, Jun Yeob Lee

Department of Chemical Engineering

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

1 Scopus citations

Abstract

A material was synthesized as a thermally activated delayed fluorescent (TADF) emitter to alleviate the geometrical hindrance between the donors and to improve the lifetime of the TADF devices. GTD (green TADF dopant) is a green TADF emitter which showed similar peak wavelengths to a common green TADF emitter, but exhibited three times longer device lifetime than a common TADF emitter. The dihedral angle between donor and central core of GTD was small compared to that of a common TADF emitter. And the improved bond dissociation energy of bond of GTD molecule affected the lifetime of TADF OLEDs.

Original language	English
Pages (from-to)	1807-1810
Number of pages	4
Journal	Digest of Technical Papers - SID International Symposium
Volume	49
Issue number	1
DOIs	https://doi.org/10.1002/sdtp.12412
State	Published - 2018
Event	SID Symposium, Seminar, and Exhibition 2018, Display Week 2018 - Los Angeles, United States Duration: 20 May 2018 → 25 May 2018

Keywords

Bond dissociation energy
Geometry
Lifetime
Organic light-emitting diodes
Thermally activated delayed fluorescence

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10.1002/sdtp.12412

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title = "Geometry control and chemical bond stabilization of thermally activated delayed fluorescent emitter to get extended lifetime in TADF OLEDS.",

abstract = "A material was synthesized as a thermally activated delayed fluorescent (TADF) emitter to alleviate the geometrical hindrance between the donors and to improve the lifetime of the TADF devices. GTD (green TADF dopant) is a green TADF emitter which showed similar peak wavelengths to a common green TADF emitter, but exhibited three times longer device lifetime than a common TADF emitter. The dihedral angle between donor and central core of GTD was small compared to that of a common TADF emitter. And the improved bond dissociation energy of bond of GTD molecule affected the lifetime of TADF OLEDs.",

keywords = "Bond dissociation energy, Geometry, Lifetime, Organic light-emitting diodes, Thermally activated delayed fluorescence",

author = "Lee, \{Ho Jung\} and Han, \{Si Hyun\} and Hong, \{Wan Pyo\} and Song, \{Ok Keun\} and Lee, \{Jun Yeob\}",

note = "Publisher Copyright: {\textcopyright} 2018, Blackwell Publishing Ltd. All rights reserved.; SID Symposium, Seminar, and Exhibition 2018, Display Week 2018 ; Conference date: 20-05-2018 Through 25-05-2018",

year = "2018",

doi = "10.1002/sdtp.12412",

language = "English",

volume = "49",

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T1 - Geometry control and chemical bond stabilization of thermally activated delayed fluorescent emitter to get extended lifetime in TADF OLEDS.

AU - Lee, Ho Jung

AU - Han, Si Hyun

AU - Hong, Wan Pyo

AU - Song, Ok Keun

AU - Lee, Jun Yeob

PY - 2018

Y1 - 2018

N2 - A material was synthesized as a thermally activated delayed fluorescent (TADF) emitter to alleviate the geometrical hindrance between the donors and to improve the lifetime of the TADF devices. GTD (green TADF dopant) is a green TADF emitter which showed similar peak wavelengths to a common green TADF emitter, but exhibited three times longer device lifetime than a common TADF emitter. The dihedral angle between donor and central core of GTD was small compared to that of a common TADF emitter. And the improved bond dissociation energy of bond of GTD molecule affected the lifetime of TADF OLEDs.

AB - A material was synthesized as a thermally activated delayed fluorescent (TADF) emitter to alleviate the geometrical hindrance between the donors and to improve the lifetime of the TADF devices. GTD (green TADF dopant) is a green TADF emitter which showed similar peak wavelengths to a common green TADF emitter, but exhibited three times longer device lifetime than a common TADF emitter. The dihedral angle between donor and central core of GTD was small compared to that of a common TADF emitter. And the improved bond dissociation energy of bond of GTD molecule affected the lifetime of TADF OLEDs.

KW - Bond dissociation energy

KW - Geometry

KW - Lifetime

KW - Organic light-emitting diodes

KW - Thermally activated delayed fluorescence

UR - https://www.scopus.com/pages/publications/85054026271

U2 - 10.1002/sdtp.12412

DO - 10.1002/sdtp.12412

M3 - Conference article

AN - SCOPUS:85054026271

SN - 0097-966X

VL - 49

SP - 1807

EP - 1810

JO - Digest of Technical Papers - SID International Symposium

JF - Digest of Technical Papers - SID International Symposium

IS - 1

T2 - SID Symposium, Seminar, and Exhibition 2018, Display Week 2018

Y2 - 20 May 2018 through 25 May 2018

ER -

Geometry control and chemical bond stabilization of thermally activated delayed fluorescent emitter to get extended lifetime in TADF OLEDS.

Abstract

Keywords

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