Electroluminescence Efficiency Enhancement in Quantum Dot Light-Emitting Diodes by Embedding a Silver Nanoisland Layer
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Date
2015
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley-VCH Verlag GmbH
Open Access Color
BRONZE
Green Open Access
Yes
OpenAIRE Downloads
83
OpenAIRE Views
129
Publicly Funded
No
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Impulse
Top 10%
Influence
Top 10%
Popularity
Top 10%
Abstract
A colloidal quantum dot light-emitting diode (QLED) is reported with substantially enhanced electroluminescence by embedding a thin layer of Ag nanoislands into hole transport layer. The maximum external quantum efficiency (EQE) of 7.1% achieved in the present work is the highest efficiency value reported for green-emitting QLEDs with a similar structure, which corresponds to 46% enhancement compared with the reference device. The relevant mechanisms enabling the EQE enhancement are associated with the near-field enhancement via an effective coupling between excitons of the quantum dot emitters and localized surface plasmons around Ag nanoislands, which are found to lead to good agreement between the simulation results and the experimental data, providing us with a useful insight important for plasmonic QLEDs.
Description
Demir, Hilmi Volkan/0000-0003-1793-112X; Sun, Xiaowei/0000-0002-2840-1880; Hernandez-Martinez, Pedro Ludwig/0000-0001-6158-0430; Zhang, Kang/0000-0002-4412-6954; Zhang, Yixi/0000-0002-3715-8560; Mutlugun, Evren/0000-0003-3715-5594; Dang, Cuong/0000-0001-6183-4082;
Keywords
Plasmons, Silver, DEVICES, Light, optoelectronics, LEDs, Light-emitting diodes, Electroluminescence efficiencies, photonics, Quantum-dot light emitting diodes, Localized surface plasmon, 535, EXCITON, 530, Quantum efficiency, NANOPARTICLES, Semiconductor quantum dots, DRNTU::Engineering::Electrical and electronic engineering::Optics, FLUORESCENCE, External quantum efficiency, BRIGHT, Quantum dots, Colloidal quantum dots, Enhanced electroluminescences, :Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics [DRNTU], PERFORMANCE, Diodes, Light emitting diodes, Nanocrystals, SELENIDE, NANOCRYSTALS, Electroluminescence, Energy transfer, LUMINESCENCE, Plasmonics, Near-field enhancement, Quantum chemistry
Turkish CoHE Thesis Center URL
Fields of Science
02 engineering and technology, 01 natural sciences, 0104 chemical sciences, 0210 nano-technology
Citation
WoS Q
Q1
Scopus Q
Q1
OpenCitations Citation Count
60
Source
Advanced Optical Materials
Volume
3
Issue
10
Start Page
1439
End Page
1445
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Citations
CrossRef : 56
Scopus : 63
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Mendeley Readers : 62
SCOPUS™ Citations
63
checked on Feb 03, 2026
Web of Science™ Citations
59
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Page Views
2
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