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Water repellent spray-type encapsulation of quantum dot light-emitting diodes using super-hydrophobic self-assembled nanoparticles
- Issue Date
- 30-Oct-2015
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Water repellency; Spray-type encapsulation; Quantum dot light-emitting diodes; Self-assembled nanoparticles
- Citation
- APPLIED SURFACE SCIENCE, v.353, pp.338 - 341
- Journal Title
- APPLIED SURFACE SCIENCE
- Volume
- 353
- Start Page
- 338
- End Page
- 341
- ISSN
- 0169-4332
- Abstract
- We have developed a spray-type encapsulation method for quantum dot light-emitting diode (QD-LED) displays designed to prevent the penetration of oxygen and moisture in ambient air and repel water. The non-wettability and oxygen/moisture repellency afforded by the super-hydrophobic (contact angle of similar to 158 degrees) self-assembled Al2O3 nanoparticles (SAM-NP) is attributed to a reduction in the number of defects sites such as pin-holes or cracks during the formation of the thin-film. The QD-LEDs with SAM-NP encapsulation were found to have an effective lifetime in ambient air and a stable light emission in water compared to those of equivalent QD-LEDs without encapsulation. (C) 2015 Elsevier B.V. All rights reserved.
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Collections - Graduate School > Materials Science and Engineering > 1. Journal Articles
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Related Researcher
- Yang, Hee sun
- Graduate School (Department of Materials Science and Engineering)