標題: A study of ultraviolet-curable organic/inorganic hybrid nanocomposites and their encapsulating applications for organic light-emitting diodes
作者: Chang, Ming-Hua
Hsieh, Tsung-Eong
Huang, Bohr-Ran
Hsieh, Huai-En
Juang, Fuh-Shyang
Tsai, Yu-Sheng
Liu, Mark O.
Lin, Jen-Lien
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: Polymers;Electrical properties;Thermal properties;Adhesion
公開日期: 15-Jun-2009
摘要: UV-curable organic/inorganic hybrid nanocomposites have been successfully synthesized with polymer monomers (tetramethoxysi lane (TMOS)/3-glycidoxypropyl-trimethoxysilane (GPTMS)) nano-fillers (silica/alumina), curing agents (bisphenol A (BPA)), and photoinitiators (triaryl sulfonium hexafluoroantimonate (TSH)) by in situ polymerization. Their thermal stability, coefficient of thermal expansion (CFE), adhesion strength, and gas barrier capability have also been investigated with thermogravimetry analysis (TGA), thermomechanical analysis (TMA), micro-computer universal testing machine and moisture penetration tests. Experimental results indicate that nano-fillers are completely homogeneously dispersed in the polymer matrices and the increase of nano-fillers in the nanocomposites causes the raise of decomposition temperature (Td) as well as gas resistance and the reduction of CTE as well as adhesion strength. Because lab-made organic/inorganic hybrid nanocomposites have been discovered to exhibit excellent gas barrier properties, we have also applied them for the encapsulation of organic light-emitting diodes (OLEDs) and flexible OLEDs. With lab-made nanocomposite cl, the lifetimes of OLEDs and flexible OLEDs can be successfully lengthened to 92 and 36 h, respectively, whereas those of OLEDs and flexible OLEDs without encapsulation are 11 and 7 h, respectively. (C) 2008 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.matchemphys.2008.11.067
http://hdl.handle.net/11536/7114
ISSN: 0254-0584
DOI: 10.1016/j.matchemphys.2008.11.067
期刊: MATERIALS CHEMISTRY AND PHYSICS
Volume: 115
Issue: 2-3
起始頁: 541
結束頁: 546
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