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: | 15-六月-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 |
顯示於類別: | 期刊論文 |