Synthesis, characterization, and OLED application of oligo(p-phenylene ethynylene)s with polyhedral oligomeric silsesquioxanes (POSS) as pendant groups
Synthesis, characterization, and OLED application of oligo(p-phenylene ethynylene)s with polyhedral oligomeric silsesquioxanes (POSS) as pendant groups
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DOI：
10.1016/j.tet.2010.10.009
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发表时间：
2010-11-27
期刊：
影响因子：
2.1
通讯作者：
Kawakami, Yusuke
中科院分区：
文献类型：
--
作者：
Ervithayasuporn, Vuthichai;Abe, Junichi;Kawakami, Yusuke
Two new classes of mono- and oligo(p-phenylene ethynylene)s grafted with polyhedral oligomeric silsesquioxanes (POSS) were synthesized via 'click' chemistry and palladium-catalyzed Sonogashira cross-coupling. These materials with cubic silsesquioxanes are very robust with excellent thermal stability in air (T-5%loss>330 degrees C) and exhibited T-g>80 degrees C. All the compounds showed high photoluminescence with a range of blue emission and quantum yield up to 80% in the solution. Extended pi conjugation molecules of oligo-pPEs POSS maintain relatively high PL quantum efficiencies in the solid state, compared to mono-pPEs POSS. A preliminary report is made of some of the materials as multilayer OLED components with active dopants PVK and PBD. (C) 2010 Elsevier Ltd. All rights reserved.
