Inorganic/organic multilayer passivation incorporating alternating stacks of organic/inorganic multilayers for long-term air-stable organic light-emitting diodes

Title
Inorganic/organic multilayer passivation incorporating alternating stacks of organic/inorganic multilayers for long-term air-stable organic light-emitting diodes
Author(s)
김세현박세열[박세열]윤원민[윤원민]김래호[김래호]박선욱[박선욱]박찬언[박찬언]
Keywords
FIELD-EFFECT TRANSISTORS; GAS-DIFFUSION BARRIERS; THIN-FILM TRANSISTORS; EXTENDED LIFETIME; LAYER; PERMEATION; MECHANISMS; INTERLAYER; EFFICIENCY; VAPOR
Issue Date
201312
Publisher
ELSEVIER SCIENCE BV
Citation
ORGANIC ELECTRONICS, v.14, no.12, pp.3385 - 3391
Abstract
Inorganic/organic multilayer passivation films were fabricated in an effort to enhance the long-term air stability of an organic light-emitting diode (OLED). AlOx was used as an inorganic layer and 6.5 pairs of alternating silicon monoxide (SiO) and poly zinc acrylate (pZA) layers were used as the organic layers. The organic layers (Alternate stack of SiO and pZA layers) made it possible to decouple the defects present in the inorganic layer (AlOx) and to increase the penetration length of water and oxygen into the devices. The resulting film was characterized using transmission electron microscopy. The film displayed a high transmittance (>95%) and a low water vapor transmission rate (WVTR, 7.98 x 10(-5) g/m(2) day) under accelerated environmental aging conditions (a temperature of 60 degrees C and a relative humidity (R. H.) of 90%). In addition, The OLEDs did not incur significant damage caused by temperature (100 degrees C) and plasma (100 W) during fabrication process by depositing of SiO onto the OLED device prior to applying the passivation layers. The passivated OLED displayed a prolonged shelf-lifetimes over a period of 3000 h at 60 degrees C and 90% R. H. (C) 2013 Elsevier B. V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/28088http://dx.doi.org/10.1016/j.orgel.2013.09.045
ISSN
1566-1199
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공과대학 > 화학공학부 > Articles
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