Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/103020
Title: Electroluminescence efficiency enhancement in quantum dot light-emitting diodes by embedding a silver nanoisland layer
Authors: Yang, Xuyong
Hernandez-Martinez, Pedro Ludwig
Dang, Cuong
Mutlugun, Evren
Zhang, Kang
Demir, Hilmi Volkan
Sun, Xiao Wei
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Issue Date: 2015
Source: Yang, X., Hernandez-Martinez, P. L., Dang, C., Mutlugun, E., Zhang, K., Demir, H. V., et al. (2015). Electroluminescence efficiency enhancement in quantum dot light-emitting diodes by embedding a silver nanoisland layer. Advanced optical materials, 3(10), 1439-1445.
Series/Report no.: Advanced optical materials
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.
URI: https://hdl.handle.net/10356/103020
http://hdl.handle.net/10220/25817
ISSN: 2195-1071
DOI: 10.1002/adom.201500172
Rights: © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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