Indexed by:
Abstract:
Thin-film encapsulation (TFE) is essential and challenging for flexible organic/quantum dot light-emitting diodes (OLEDs/QLEDs). In this work, SiO2 nanoparticles were added into the NEA 121 polymer (s-NEA) to prolong the permeation pathways, showing good barrier property and high optical transparency. With increasing the concentration of SiO2 nanoparticles up to 20 mg/ml, the value of water vapor transmission rate (WVTR) decreased. A single s-NEA layer with silica concentration of 20 mg/ml and thickness of similar to 75 mu m exhibited WVTR of 2.5x10(-3) g/m(2)/day and light transmittance of above 80%. Al2O3 thin films fabricated using atomic layer deposition were inserted between s-NEA layers to form dyad-style Al2O3/s-NEA multilayers. The Al2O3 (60 nm)/s-NEA (20 mu m) multilayers with 3 units exhibited WVTR of 2.6x10(-5) g/m(2)/day and consistently demonstrated a significantly extended QLED lifetime.
Keyword:
Reprint 's Address:
Email:
Version:
Source :
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
ISSN: 0957-4522
Year: 2019
Issue: 24
Volume: 30
Page: 21089-21095
2 . 2 2
JCR@2019
2 . 8 0 0
JCR@2023
ESI Discipline: MATERIALS SCIENCE;
ESI HC Threshold:236
JCR Journal Grade:2
CAS Journal Grade:3
Cited Count:
WoS CC Cited Count: 3
SCOPUS Cited Count: 4
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 3