High-triplet-energy bipolar host materials based on phosphine oxide derivatives for efficient sky-blue thermally activated delayed fluorescence organic light-emitting diodes with reduced roll-off

Jong Uk Kim; Michael Y. Wong; Shiv Kumar; Oliver Hayes; Finlay Duncan; Chin-Yiu Chan; Ben Yiu-Wing Wong; Hao Ye; Lin-Song Cui; Hajime Nakanotani; Eli Zysman-Colman; Chihaya Adachi

doi:10.1246/cl.190412

High-triplet-energy bipolar host materials based on phosphine oxide derivatives for efficient sky-blue thermally activated delayed fluorescence organic light-emitting diodes with reduced roll-off

Jong Uk Kim
, Michael Y. Wong
, Shiv Kumar
, Oliver Hayes
, Finlay Duncan
, Chin-Yiu Chan
, Ben Yiu-Wing Wong
, Hao Ye
, Lin-Song Cui
, Hajime Nakanotani
, Eli Zysman-Colman
, Chihaya Adachi

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

Abstract

We designed and synthesized two new ambipolar host materials, namely CzPO and Cz3PO. Combining CzPO and Cz3PO with CzTRZ2 as the emitter resulted in improved maximum external quantum efficiencies of 13.1% and 13.2%, respectively, together with small efficiency roll-offs, while the device based on bis[2-(diphenylphosphino)phenyl]ether oxide (DPEPO) as host showed a much more pronounced efficiency roll-off.

Original language	English
Pages (from-to)	1225-1228
Journal	Chemistry Letters
Volume	48
Issue number	10
Early online date	21 Sept 2019
DOIs	https://doi.org/10.1246/cl.190412
Publication status	Published - Oct 2019

Keywords

Thermally activated delayed fluorescence (TADF)
Organic light-emitting diode (OLED)
Ambipolar host

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10.1246/cl.190412

Kim_2019_CL_High-tripletenergy_AAM
Copyright © 2019 The Chemical Society of Japan. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1246/cl.190412
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Chemistry EPSRC-JSPS: EPSRC-JSPS Core-to-Core Grant Application
Zysman-Colman, E. (PI)
1/08/18 → 31/01/24
Project: Standard
THF-OLED: H2020 MSCA Fellowship 2016 THF-OLED
Zysman-Colman, E. (PI)
Joint Research Centre European Commission
1/05/17 → 31/10/19
Project: Fellowship
TADF Emitters for OLEDs - Eli Zysman: TADF Emitters for OLEDs
Zysman-Colman, E. (PI)
EPSRC
1/03/17 → 31/03/21
Project: Standard

High-Triplet-Energy Bipolar Host Materials Based on Phosphine Oxide Derivatives for Efficient Sky- Blue Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes with Reduced Roll-off (dataset)
Kim, J. U. (Creator), Wong, Y. (Creator), Kumar, S. (Creator), Hayes, O. G. (Creator), Duncan, F. (Creator), Chan, C.-Y. (Creator), Wong, B.Y.-W. (Creator), Ye, H. (Creator), Cui, L.-S. (Creator), Nakanotani, H. (Creator), Zysman-Colman, E. (Creator) & Adachi, C. (Creator), University of St Andrews, 15 Oct 2019
DOI: 10.17630/c9e0cf42-a23c-44f5-abb8-4ff3b5451a75
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Cite this

Kim, J. U., Wong, M. Y., Kumar, S., Hayes, O., Duncan, F., Chan, C.-Y., Wong, B. Y.-W., Ye, H., Cui, L.-S., Nakanotani, H., Zysman-Colman, E., & Adachi, C. (2019). High-triplet-energy bipolar host materials based on phosphine oxide derivatives for efficient sky-blue thermally activated delayed fluorescence organic light-emitting diodes with reduced roll-off. Chemistry Letters, 48(10), 1225-1228. https://doi.org/10.1246/cl.190412

@article{95b51d9164714581bf324d851820a6aa,

title = "High-triplet-energy bipolar host materials based on phosphine oxide derivatives for efficient sky-blue thermally activated delayed fluorescence organic light-emitting diodes with reduced roll-off",

abstract = "We designed and synthesized two new ambipolar host materials, namely CzPO and Cz3PO. Combining CzPO and Cz3PO with CzTRZ2 as the emitter resulted in improved maximum external quantum efficiencies of 13.1\% and 13.2\%, respectively, together with small efficiency roll-offs, while the device based on bis[2-(diphenylphosphino)phenyl]ether oxide (DPEPO) as host showed a much more pronounced efficiency roll-off.",

keywords = "Thermally activated delayed fluorescence (TADF), Organic light-emitting diode (OLED), Ambipolar host",

author = "Kim, \{Jong Uk\} and Wong, \{Michael Y.\} and Shiv Kumar and Oliver Hayes and Finlay Duncan and Chin-Yiu Chan and Wong, \{Ben Yiu-Wing\} and Hao Ye and Lin-Song Cui and Hajime Nakanotani and Eli Zysman-Colman and Chihaya Adachi",

note = "This work was supported by a grant fund from the Regional Innovation Eco-System Program sponsored by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan, JST ERATO (Grant Number JPMJER1305), the International Institute for Carbon Neutral Energy Research (WPI-I2CNER) sponsored by MEXT, and JSPS KAKENHI (Grant Numbers 00H00000). EZ-C the EPSRC (EP/R035164/1; EP/P010482/1) and the University of St Andrews and for SK the European Commission Marie Sk{\l}odowska-Curie Individual Fellowship (MCIF; No. 748430- THF-OLED) ",

year = "2019",

month = oct,

doi = "10.1246/cl.190412",

language = "English",

volume = "48",

pages = "1225--1228",

journal = "Chemistry Letters",

issn = "0366-7022",

publisher = "Oxford University Press",

number = "10",

}

Kim, JU, Wong, MY, Kumar, S, Hayes, O, Duncan, F, Chan, C-Y, Wong, BY-W, Ye, H, Cui, L-S, Nakanotani, H, Zysman-Colman, E & Adachi, C 2019, 'High-triplet-energy bipolar host materials based on phosphine oxide derivatives for efficient sky-blue thermally activated delayed fluorescence organic light-emitting diodes with reduced roll-off', Chemistry Letters, vol. 48, no. 10, pp. 1225-1228. https://doi.org/10.1246/cl.190412

High-triplet-energy bipolar host materials based on phosphine oxide derivatives for efficient sky-blue thermally activated delayed fluorescence organic light-emitting diodes with reduced roll-off. / Kim, Jong Uk; Wong, Michael Y.; Kumar, Shiv et al.
In: Chemistry Letters, Vol. 48, No. 10, 10.2019, p. 1225-1228.

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

TY - JOUR

T1 - High-triplet-energy bipolar host materials based on phosphine oxide derivatives for efficient sky-blue thermally activated delayed fluorescence organic light-emitting diodes with reduced roll-off

AU - Kim, Jong Uk

AU - Wong, Michael Y.

AU - Kumar, Shiv

AU - Hayes, Oliver

AU - Duncan, Finlay

AU - Chan, Chin-Yiu

AU - Wong, Ben Yiu-Wing

AU - Ye, Hao

AU - Cui, Lin-Song

AU - Nakanotani, Hajime

AU - Zysman-Colman, Eli

AU - Adachi, Chihaya

N1 - This work was supported by a grant fund from the Regional Innovation Eco-System Program sponsored by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan, JST ERATO (Grant Number JPMJER1305), the International Institute for Carbon Neutral Energy Research (WPI-I2CNER) sponsored by MEXT, and JSPS KAKENHI (Grant Numbers 00H00000). EZ-C the EPSRC (EP/R035164/1; EP/P010482/1) and the University of St Andrews and for SK the European Commission Marie Skłodowska-Curie Individual Fellowship (MCIF; No. 748430- THF-OLED)

PY - 2019/10

Y1 - 2019/10

N2 - We designed and synthesized two new ambipolar host materials, namely CzPO and Cz3PO. Combining CzPO and Cz3PO with CzTRZ2 as the emitter resulted in improved maximum external quantum efficiencies of 13.1% and 13.2%, respectively, together with small efficiency roll-offs, while the device based on bis[2-(diphenylphosphino)phenyl]ether oxide (DPEPO) as host showed a much more pronounced efficiency roll-off.

AB - We designed and synthesized two new ambipolar host materials, namely CzPO and Cz3PO. Combining CzPO and Cz3PO with CzTRZ2 as the emitter resulted in improved maximum external quantum efficiencies of 13.1% and 13.2%, respectively, together with small efficiency roll-offs, while the device based on bis[2-(diphenylphosphino)phenyl]ether oxide (DPEPO) as host showed a much more pronounced efficiency roll-off.

KW - Thermally activated delayed fluorescence (TADF)

KW - Organic light-emitting diode (OLED)

KW - Ambipolar host

U2 - 10.1246/cl.190412

DO - 10.1246/cl.190412

M3 - Article

SN - 0366-7022

VL - 48

SP - 1225

EP - 1228

JO - Chemistry Letters

JF - Chemistry Letters

IS - 10

ER -

High-triplet-energy bipolar host materials based on phosphine oxide derivatives for efficient sky-blue thermally activated delayed fluorescence organic light-emitting diodes with reduced roll-off

Abstract

Keywords

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Projects

Chemistry EPSRC-JSPS: EPSRC-JSPS Core-to-Core Grant Application

THF-OLED: H2020 MSCA Fellowship 2016 THF-OLED

TADF Emitters for OLEDs - Eli Zysman: TADF Emitters for OLEDs

Datasets

High-Triplet-Energy Bipolar Host Materials Based on Phosphine Oxide Derivatives for Efficient Sky- Blue Thermally Activated Delayed Fluorescence Organic Light-Emitting Diodes with Reduced Roll-off (dataset)

Cite this