Bright Deep Blue TADF OLEDs: The Role of Triphenylphosphine Oxide in NPB/TPBi:PPh3O Exciplex Emission
Abstract
Very bright (≈14 000 cd m–2) deep blue exciplex organic light emitting diodes (OLEDs) peaking at ≈435 nm, where the photopic response is ≈0.033, and with CIE color coordinates (0.1525, 0.0820), are described. The OLED properties are interestingly linked to PPh3O (triphenylphosphine oxide) and attributes of the emitting layer (EML) comprising NPB interfacing host:guest TPBi:PPh3O 5:1 weight ratio. A neat PPh3O layer that is central for device performance follows the EML (NPB/TPBi:PPh3O 5:1/PPh3O). The bright electroluminescence originates from NPB/TPBi:PPh3O exciplexes involving triplets via thermally activated delayed fluorescence, as evident from the strong quenching of the photoluminescence (PL) by oxygen and interestingly, the monomolecular emission process. The transient PL decay times of a NPB/TPBi:PPh3O 5:1/PPh3O film are 43 ns in air versus 136, 610, and weak ≈2000 ns in N2. For comparison, the respective PL decay times of films of NPB:TPBi are 16 ns in air versus 131 and 600 ns in N2, and of NPB:PPh3O they are 29 ns in air versus 56, 483, and weak ≈2000 ns in N2. Furthermore it is suspected that slow emitting states are associated with a PPh3O aggregate interacting with NPB.
- Authors:
-
[1]
- Ames Lab., and Iowa State Univ., Ames, IA (United States)
- Bowling Green State Univ., Bowling Green, OH (United States)
- Oklahoma State Univ., Stillwater, OK (United States)
- Iowa State Univ., Ames, IA (United States)
- Publication Date:
- Research Org.:
- Ames Lab., Ames, IA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1575203
- Alternate Identifier(s):
- OSTI ID: 1574072
- Report Number(s):
- IS-J-10049
Journal ID: ISSN 2195-1071
- Grant/Contract Number:
- AC02‐07CH11358; ECCS 1202309
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Advanced Optical Materials
- Additional Journal Information:
- Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2195-1071
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; all‐organic OLEDs; bright deep blue OLEDs; exciplex TADF OLEDs
Citation Formats
Hippola, Chamika, Danilovic, Dusan, Bhattacharjee, Ujjal, Perez‐Bolivar, Cesar, Sachinthani, K. A. Niradha, Nelson, Toby L., Anzenbacher, Pavel, Petrich, Jacob W., Shinar, Ruth, and Shinar, Joseph. Bright Deep Blue TADF OLEDs: The Role of Triphenylphosphine Oxide in NPB/TPBi:PPh3O Exciplex Emission. United States: N. p., 2019.
Web. doi:10.1002/adom.201901282.
Hippola, Chamika, Danilovic, Dusan, Bhattacharjee, Ujjal, Perez‐Bolivar, Cesar, Sachinthani, K. A. Niradha, Nelson, Toby L., Anzenbacher, Pavel, Petrich, Jacob W., Shinar, Ruth, & Shinar, Joseph. Bright Deep Blue TADF OLEDs: The Role of Triphenylphosphine Oxide in NPB/TPBi:PPh3O Exciplex Emission. United States. https://doi.org/10.1002/adom.201901282
Hippola, Chamika, Danilovic, Dusan, Bhattacharjee, Ujjal, Perez‐Bolivar, Cesar, Sachinthani, K. A. Niradha, Nelson, Toby L., Anzenbacher, Pavel, Petrich, Jacob W., Shinar, Ruth, and Shinar, Joseph. Wed .
"Bright Deep Blue TADF OLEDs: The Role of Triphenylphosphine Oxide in NPB/TPBi:PPh3O Exciplex Emission". United States. https://doi.org/10.1002/adom.201901282. https://www.osti.gov/servlets/purl/1575203.
@article{osti_1575203,
title = {Bright Deep Blue TADF OLEDs: The Role of Triphenylphosphine Oxide in NPB/TPBi:PPh3O Exciplex Emission},
author = {Hippola, Chamika and Danilovic, Dusan and Bhattacharjee, Ujjal and Perez‐Bolivar, Cesar and Sachinthani, K. A. Niradha and Nelson, Toby L. and Anzenbacher, Pavel and Petrich, Jacob W. and Shinar, Ruth and Shinar, Joseph},
abstractNote = {Very bright (≈14 000 cd m–2) deep blue exciplex organic light emitting diodes (OLEDs) peaking at ≈435 nm, where the photopic response is ≈0.033, and with CIE color coordinates (0.1525, 0.0820), are described. The OLED properties are interestingly linked to PPh3O (triphenylphosphine oxide) and attributes of the emitting layer (EML) comprising NPB interfacing host:guest TPBi:PPh3O 5:1 weight ratio. A neat PPh3O layer that is central for device performance follows the EML (NPB/TPBi:PPh3O 5:1/PPh3O). The bright electroluminescence originates from NPB/TPBi:PPh3O exciplexes involving triplets via thermally activated delayed fluorescence, as evident from the strong quenching of the photoluminescence (PL) by oxygen and interestingly, the monomolecular emission process. The transient PL decay times of a NPB/TPBi:PPh3O 5:1/PPh3O film are 43 ns in air versus 136, 610, and weak ≈2000 ns in N2. For comparison, the respective PL decay times of films of NPB:TPBi are 16 ns in air versus 131 and 600 ns in N2, and of NPB:PPh3O they are 29 ns in air versus 56, 483, and weak ≈2000 ns in N2. Furthermore it is suspected that slow emitting states are associated with a PPh3O aggregate interacting with NPB.},
doi = {10.1002/adom.201901282},
journal = {Advanced Optical Materials},
number = 1,
volume = 8,
place = {United States},
year = {2019},
month = {11}
}
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Works referenced in this record:
Blue exciplex emission and its role as a host of phosphorescent emitter
journal, September 2015
- Zhang, Tianyou; Zhao, Bo; Chu, Bei
- Organic Electronics, Vol. 24
Controlling Singlet-Triplet Energy Splitting for Deep-Blue Thermally Activated Delayed Fluorescence Emitters
journal, December 2016
- Cui, Lin-Song; Nomura, Hiroko; Geng, Yan
- Angewandte Chemie International Edition, Vol. 56, Issue 6
Enhancing Reverse Intersystem Crossing via Secondary Acceptors: toward Sky-Blue Fluorescent Diodes with 10-Fold Improved External Quantum Efficiency
journal, January 2019
- Fan, Xuefeng; Li, Chenyu; Wang, Zicheng
- ACS Applied Materials & Interfaces, Vol. 11, Issue 4
Ideal blue thermally activated delayed fluorescence emission assisted by a thermally activated delayed fluorescence assistant dopant through a fast reverse intersystem crossing mediated cascade energy transfer process
journal, January 2019
- Han, Si Hyun; Jeong, Jae Ho; Yoo, Ji Woong
- Journal of Materials Chemistry C, Vol. 7, Issue 10
Deep Blue Exciplex Organic Light-Emitting Diodes with Enhanced Efficiency; P-type or E-type Triplet Conversion to Singlet Excitons?
journal, December 2012
- Jankus, Vygintas; Chiang, Chien-Jung; Dias, Fernando
- Advanced Materials, Vol. 25, Issue 10
Arylfluorenyl-substituted metoxytriphenylamines as deep blue exciplex forming bipolar semiconductors for white and blue organic light emitting diodes
journal, May 2017
- Cekaviciute, Monika; Simokaitiene, Jurate; Volyniuk, Dmytro
- Dyes and Pigments, Vol. 140
Blue organic light-emitting diodes realizing external quantum efficiency over 25% using thermally activated delayed fluorescence emitters
journal, March 2017
- Miwa, Takuya; Kubo, Shosei; Shizu, Katsuyuki
- Scientific Reports, Vol. 7, Issue 1
Organic Photodetectors in Analytical Applications
journal, September 2015
- Manna, Eeshita; Xiao, Teng; Shinar, Joseph
- Electronics, Vol. 4, Issue 3
High-efficiency organic electrophosphorescent devices with tris(2-phenylpyridine)iridium doped into electron-transporting materials
journal, August 2000
- Adachi, Chihaya; Baldo, Marc A.; Forrest, Stephen R.
- Applied Physics Letters, Vol. 77, Issue 6
Photophysics of thermally activated delayed fluorescence molecules
journal, March 2017
- Dias, Fernando B.; Penfold, Thomas J.; Monkman, Andrew P.
- Methods and Applications in Fluorescence, Vol. 5, Issue 1
High-efficiency organic light-emitting diodes with fluorescent emitters
journal, May 2014
- Nakanotani, Hajime; Higuchi, Takahiro; Furukawa, Taro
- Nature Communications, Vol. 5, Issue 1
Exciplex: An Intermolecular Charge-Transfer Approach for TADF
journal, April 2018
- Sarma, Monima; Wong, Ken-Tsung
- ACS Applied Materials & Interfaces, Vol. 10, Issue 23
Study of Charge-Transfer Complexes of [60]- and [70]Fullerenes with a Series of Phosphine Oxides
journal, November 2003
- Bhattacharya, Sumanta; Nayak, Sandip K.; Chattopadhyay, Subrata
- The Journal of Physical Chemistry B, Vol. 107, Issue 47
Low voltage organic light-emitting devices with triphenylphosphine oxide layer
journal, July 2008
- Ha, Mi-Young; Moon, Dae-Gyu
- Applied Physics Letters, Vol. 93, Issue 4
Highly Efficient Non-Doped Blue-Light-Emitting Diodes Based on an Anthrancene Derivative End-Capped with Tetraphenylethylene Groups
journal, September 2007
- Shih, P. -I; Chuang, C. -Y.; Chien, C. -H.
- Advanced Functional Materials, Vol. 17, Issue 16
Organic Light-Emitting Diode Sensing Platform: Challenges and Solutions
journal, October 2011
- Liu, Rui; Cai, Yuankun; Park, Joong-Mok
- Advanced Functional Materials, Vol. 21, Issue 24
Sky-Blue Organic Light Emitting Diode with 37% External Quantum Efficiency Using Thermally Activated Delayed Fluorescence from Spiroacridine-Triazine Hybrid
journal, June 2016
- Lin, Ting-An; Chatterjee, Tanmay; Tsai, Wei-Lung
- Advanced Materials, Vol. 28, Issue 32
Promising operational stability of high-efficiency organic light-emitting diodes based on thermally activated delayed fluorescence
journal, July 2013
- Nakanotani, Hajime; Masui, Kensuke; Nishide, Junichi
- Scientific Reports, Vol. 3, Issue 1
Organic light-emitting diodes employing efficient reverse intersystem crossing for triplet-to-singlet state conversion
journal, March 2012
- Goushi, Kenichi; Yoshida, Kou; Sato, Keigo
- Nature Photonics, Vol. 6, Issue 4
Design of Efficient Thermally Activated Delayed Fluorescence Materials for Pure Blue Organic Light Emitting Diodes
journal, August 2012
- Zhang, Qisheng; Li, Jie; Shizu, Katsuyuki
- Journal of the American Chemical Society, Vol. 134, Issue 36
Highly efficient Organic Light-Emitting Diodes from thermally activated delayed fluorescence using a sulfone–carbazole host material
journal, January 2015
- Gaj, Michael P.; Fuentes-Hernandez, Canek; Zhang, Yadong
- Organic Electronics, Vol. 16
Triazine-phosphine oxide electron transporter for ultralow-voltage-driven sky blue PHOLEDs
journal, January 2015
- Jia, Jilin; Zhu, Liping; Wei, Ying
- Journal of Materials Chemistry C, Vol. 3, Issue 19
Theoretical investigations of the electronic structures of carbazole-based triphenylphosphine oxide derivatives, potential bipolar host materials in blue-phosphorescent devices
journal, December 2015
- Sun, Huili; Shen, Wei; Zhang, Xiaguang
- Journal of Molecular Modeling, Vol. 21, Issue 12
Thermally Activated Delayed Fluorescence from Azasiline Based Intramolecular Charge-Transfer Emitter (DTPDDA) and a Highly Efficient Blue Light Emitting Diode
journal, September 2015
- Sun, Jin Won; Baek, Jang Yeol; Kim, Kwon-Hyeon
- Chemistry of Materials, Vol. 27, Issue 19
Triphenylphosphine oxide as a crystallization aid
journal, January 1988
- Etter, Margaret C.; Baures, Paul W.
- Journal of the American Chemical Society, Vol. 110, Issue 2
MoO 3 as combined hole injection layer and tapered spacer in combinatorial multicolor microcavity organic light emitting diodes
journal, August 2011
- Liu, Rui; Xu, Chun; Biswas, Rana
- Applied Physics Letters, Vol. 99, Issue 9
Determination of the interface energy level alignment of a doped organic hetero-junction using capacitance–voltage measurements
journal, November 2012
- Lee, Sunghun; Lee, Jeong-Hwan; Kim, Kwon Hyeon
- Organic Electronics, Vol. 13, Issue 11
Organic light-emitting devices with triphenylphosphine oxide layer
journal, September 2008
- Ha, M. Y.; Moon, D. G.
- Synthetic Metals, Vol. 158, Issue 15
Ultraviolet electroluminescence and blue-green phosphorescence using an organic diphosphine oxide charge transporting layer
journal, May 2006
- Burrows, P. E.; Padmaperuma, A. B.; Sapochak, L. S.
- Applied Physics Letters, Vol. 88, Issue 18
Phosphine oxide derivatives for organic light emitting diodes
journal, January 2012
- Jeon, Soon Ok; Lee, Jun Yeob
- J. Mater. Chem., Vol. 22, Issue 10
Deep blue phosphorescent organic light-emitting diodes with very high brightness and efficiency
journal, October 2015
- Lee, Jaesang; Chen, Hsiao-Fan; Batagoda, Thilini
- Nature Materials, Vol. 15, Issue 1, p. 92-98
Highly efficient organic light-emitting diodes from delayed fluorescence
journal, December 2012
- Uoyama, Hiroki; Goushi, Kenichi; Shizu, Katsuyuki
- Nature, Vol. 492, Issue 7428
Purely Organic Thermally Activated Delayed Fluorescence Materials for Organic Light-Emitting Diodes
journal, March 2017
- Wong, Michael Y.; Zysman-Colman, Eli
- Advanced Materials, Vol. 29, Issue 22
Organophosphorus derivatives for electronic devices
journal, January 2016
- Joly, D.; Bouit, P. -A.; Hissler, M.
- Journal of Materials Chemistry C, Vol. 4, Issue 17
Investigation of the Mechanisms Giving Rise to TADF in Exciplex States
journal, August 2016
- dos Santos, Paloma L.; Dias, Fernando B.; Monkman, Andrew P.
- The Journal of Physical Chemistry C, Vol. 120, Issue 32
Highly Improved Electroluminescence from a Series of Novel EuIII Complexes with Functional Single-Coordinate Phosphine Oxide Ligands: Tuning the Intramolecular Energy Transfer, Morphology, and Carrier Injection Ability of the Complexes
journal, December 2007
- Xu, Hui; Yin, Kun; Huang, Wei
- Chemistry - A European Journal, Vol. 13, Issue 36
High efficiency blue fluorescent organic light-emitting diodes using a conventional blue fluorescent emitter
journal, January 2015
- Lee, In Ho; Song, Wook; Lee, Jun Yeob
- Journal of Materials Chemistry C, Vol. 3, Issue 34
Degradation Mechanism and Lifetime Improvement Strategy for Blue Phosphorescent Organic Light-Emitting Diodes
journal, March 2017
- Song, Wook; Lee, Jun Yeob
- Advanced Optical Materials, Vol. 5, Issue 9
Removing shortcomings of linear molecules to develop high efficiencies deep-blue organic electroluminescent materials
journal, November 2016
- Zhu, Ze-Lin; Chen, Miao; Chen, Wen-Cheng
- Organic Electronics, Vol. 38
Tenfold increase in the lifetime of blue phosphorescent organic light-emitting diodes
journal, September 2014
- Zhang, Yifan; Lee, Jaesang; Forrest, Stephen R.
- Nature Communications, Vol. 5, Article No. 5008
Nearly 100% internal phosphorescence efficiency in an organic light-emitting device
journal, November 2001
- Adachi, Chihaya; Baldo, Marc A.; Thompson, Mark E.
- Journal of Applied Physics, Vol. 90, Issue 10
High-Purity-Blue and High-Efficiency Electroluminescent Devices Based on Anthracene
journal, November 2005
- Kim, Y. -H.; Jeong, H. -C.; Kim, S. -H.
- Advanced Functional Materials, Vol. 15, Issue 11
White organic light-emitting diodes with fluorescent tube efficiency
journal, May 2009
- Reineke, Sebastian; Lindner, Frank; Schwartz, Gregor
- Nature, Vol. 459, Issue 7244
HATCN-based Charge Recombination Layers as Effective Interconnectors for Tandem Organic Solar Cells
journal, August 2014
- Wang, Rong-Bin; Wang, Qian-Kun; Xie, Hao-Jun
- ACS Applied Materials & Interfaces, Vol. 6, Issue 17
Low voltage red phosphorescent organic light-emitting devices with triphenylphosphine oxide and 4,4′-bis(2,2′-diphenylvinyl)-1,1′-biphenyl electron transport layers
journal, July 2010
- Kim, Tae-Yong; Moon, Dae-Gyu
- Current Applied Physics, Vol. 10, Issue 4
High triplet energy exciplex hosts for deep blue phosphorescent organic light-emitting diodes
journal, January 2017
- Song, Wook; Lee, Ha Lim; Lee, Jun Yeob
- Journal of Materials Chemistry C, Vol. 5, Issue 24
Blue fluorescent emitters: design tactics and applications in organic light-emitting diodes
journal, January 2013
- Zhu, Minrong; Yang, Chuluo
- Chemical Society Reviews, Vol. 42, Issue 12
Charge carriers and charge-transfer reactions in OLED devices studied by electron paramagnetic resonance
journal, January 2010
- Pawlik, Thomas D.; Kondakov, Denis Y.; Begley, William J.
- Journal of the Society for Information Display, Vol. 18, Issue 4
Oxadiazole- and triazole-based highly-efficient thermally activated delayed fluorescence emitters for organic light-emitting diodes
journal, January 2013
- Lee, Jiyoung; Shizu, Katsuyuki; Tanaka, Hiroyuki
- Journal of Materials Chemistry C, Vol. 1, Issue 30
Mixed-host-emitting layer for high-efficiency organic light-emitting diodes
journal, July 2014
- Lee, Jun Yeob
- Journal of Information Display, Vol. 15, Issue 3
Deep-blue efficient OLED based on NPB with little efficiency roll-off under high current density
journal, February 2017
- Liu, Jian
- Applied Physics A, Vol. 123, Issue 3
Remanagement of Singlet and Triplet Excitons in Single-Emissive-Layer Hybrid White Organic Light-Emitting Devices Using Thermally Activated Delayed Fluorescent Blue Exciplex
journal, October 2015
- Liu, Xiao-Ke; Chen, Zhan; Qing, Jian
- Advanced Materials, Vol. 27, Issue 44
New Charge Transporting Host Material for Short Wavelength Organic Electrophosphorescence: 2,7-Bis(diphenylphosphine oxide)-9,9-dimethylfluorene
journal, May 2006
- Padmaperuma, Asanga B.; Sapochak, Linda S.; Burrows, Paul E.
- Chemistry of Materials, Vol. 18, Issue 9
A phosphine oxide derivative as a universal electron transport material for organic light-emitting diodes
journal, January 2009
- Jeon, Soon Ok; Yook, Kyoung Soo; Joo, Chul Woong
- Journal of Materials Chemistry, Vol. 19, Issue 33
High Quantum Efficiency in Organic Light-Emitting Devices with Iridium-Complex as a Triplet Emissive Center
journal, December 1999
- Tsutsui, Tetsuo; Yang, Moon-Jae; Yahiro, Masayuki
- Japanese Journal of Applied Physics, Vol. 38, Issue Part 2, No. 12B
High-Performance Green OLEDs Using Thermally Activated Delayed Fluorescence with a Power Efficiency of over 100 lm W −1
journal, February 2016
- Seino, Yuki; Inomata, Susumu; Sasabe, Hisahiro
- Advanced Materials, Vol. 28, Issue 13
White Organic Light-Emitting Diodes with Fluorescent Tube Efficiency
journal, January 2009
- Reineke, Sebastian; Lindner, Frank; Schwartz, Gregor
- MRS Proceedings, Vol. 1212