Advanced Optical Materials, volume 10, issue 10, pages 2102508
Single Conjugated Polymer with Four Stepwise HOMO Levels for Effective Hole Injection Across Large Barrier 1.4 eV to Core–Shell Quantum Dot Layer for Electroluminescence in Inverted QLED
Wu Shuo En
1
,
Sharma Sunil
1
,
Chen Hsin Lung
1
,
Chen Show-An
1
,
Komarov Pavel V
2, 3
,
Ivanov Viktor A.
4, 5
,
Khokhlov Alexei R.
2, 4
5
Institut für Physik Martin‐Luther‐Universität 06120 Halle Germany
|
Publication type: Journal Article
Publication date: 2022-04-05
Journal:
Advanced Optical Materials
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 9
ISSN: 21951071
Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Abstract
A novel graded‐HOMO‐level hole transport polymer (g‐HTP) is proposed for the first time with spiro‐polyfluorene (sPF) as the main chain and the three hole‐transporting moieties triphenyl amine (TPA), carbazole (Cz), and N,N′‐dicarbazolyl‐3,5‐benzene (mCP) as side chains for effective hole injection across the large barrier 1.4 eV into the green‐emission core–shell quantum dot (QD) CdSe/ZnS emission layer in inverted QD light‐emitting diode (i‐QLED): ITO/ZnO/QD/HTP/MoO3/Al, in which both oleophilic ligands (OA and TOP) in the QD are partially removed from QD surface by annealing at 270 °C for preventing dissolution by solvent in subsequent coating of hole transport material (HTM) solutions atop and also improving electron and hole mobilities, especially the former. The proposed g‐HTP with various m:n mole ratios of mCP to TPA/Cz moieties along with various reported HTMs (PVK, Poly‐TPD and TFB) are investigated. Among them, the proposed g‐HTP with the comonomer mole ratio 1:1 gives the best performance ηmax 36.1 cd A−1 and Bmax 208 600 cd m−2, which is the highest performance among the reported i‐QLEDs with single hole‐transport layer ever documented. In addition, its efficiency roll off is low from 35.8 cd A−1 at 10 000 cd m−2 to 31.1 cd A−1 at 100 000 cd m−2.
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Citations by publishers
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4 publications, 30.77%
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1 publication, 7.69%
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IOP Publishing
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1 publication, 7.69%
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Wiley
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1 publication, 7.69%
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1
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4
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- We do not take into account publications that without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Wu S. E. et al. Single Conjugated Polymer with Four Stepwise HOMO Levels for Effective Hole Injection Across Large Barrier 1.4 eV to Core–Shell Quantum Dot Layer for Electroluminescence in Inverted QLED // Advanced Optical Materials. 2022. Vol. 10. No. 10. p. 2102508.
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Wu S. E., Sharma S., Chen H. L., Chen S., Komarov P. V., Ivanov V. A., Khokhlov A. R. Single Conjugated Polymer with Four Stepwise HOMO Levels for Effective Hole Injection Across Large Barrier 1.4 eV to Core–Shell Quantum Dot Layer for Electroluminescence in Inverted QLED // Advanced Optical Materials. 2022. Vol. 10. No. 10. p. 2102508.
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TY - JOUR
DO - 10.1002/adom.202102508
UR - https://doi.org/10.1002%2Fadom.202102508
TI - Single Conjugated Polymer with Four Stepwise HOMO Levels for Effective Hole Injection Across Large Barrier 1.4 eV to Core–Shell Quantum Dot Layer for Electroluminescence in Inverted QLED
T2 - Advanced Optical Materials
AU - Wu, Shuo En
AU - Sharma, Sunil
AU - Chen, Hsin Lung
AU - Khokhlov, Alexei R.
AU - Komarov, Pavel V
AU - Ivanov, Viktor A.
AU - Chen, Show-An
PY - 2022
DA - 2022/04/05 00:00:00
PB - Wiley
SP - 2102508
IS - 10
VL - 10
SN - 2195-1071
ER -
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@article{2022_Wu
author = {Shuo En Wu and Sunil Sharma and Hsin Lung Chen and Alexei R. Khokhlov and Pavel V Komarov and Viktor A. Ivanov and Show-An Chen},
title = {Single Conjugated Polymer with Four Stepwise HOMO Levels for Effective Hole Injection Across Large Barrier 1.4 eV to Core–Shell Quantum Dot Layer for Electroluminescence in Inverted QLED},
journal = {Advanced Optical Materials},
year = {2022},
volume = {10},
publisher = {Wiley},
month = {apr},
url = {https://doi.org/10.1002%2Fadom.202102508},
number = {10},
pages = {2102508},
doi = {10.1002/adom.202102508}
}
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Wu, Shuo En, et al. “Single Conjugated Polymer with Four Stepwise HOMO Levels for Effective Hole Injection Across Large Barrier 1.4 eV to Core–Shell Quantum Dot Layer for Electroluminescence in Inverted QLED.” Advanced Optical Materials, vol. 10, no. 10, Apr. 2022, p. 2102508. https://doi.org/10.1002%2Fadom.202102508.