Water repellent spray-type encapsulation of quantum dot light-emitting diodes using super-hydrophobic self-assembled nanoparticles

Han, Junebeom; Bong, Jihye; Lim, Taekyung; Lee, Ki-Heon; Yang, Heesun; Ju, Sanghyun

doi:10.1016/j.apsusc.2015.06.142

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Water repellent spray-type encapsulation of quantum dot light-emitting diodes using super-hydrophobic self-assembled nanoparticles

Han, Junebeom;
Bong, Jihye;
Lim, Taekyung;
Lee, Ki-Heon;
Yang, Heesun;
외 1명

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초록

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.

키워드

Water repellency; Spray-type encapsulation; Quantum dot light-emitting diodes; Self-assembled nanoparticles; PERFORMANCE; DEVICES; NANOCOMPOSITE; HYBRID; FILM; DEGRADATION; MULTILAYERS; SILICONE; VAPOR; LEDS

제목: Water repellent spray-type encapsulation of quantum dot light-emitting diodes using super-hydrophobic self-assembled nanoparticles

저자: Han, Junebeom; Bong, Jihye; Lim, Taekyung; Lee, Ki-Heon; Yang, Heesun; Ju, Sanghyun

DOI: 10.1016/j.apsusc.2015.06.142

발행일: 2015-10-30

유형: Article

저널명: Applied Surface Science

권: 353

페이지: 338 ~ 341

언어: ENG

출판사: ELSEVIER SCIENCE BV

발행국가: 네덜란드

분량: 4 페이지

ISSN: E 1873-5584
P 0169-4332