Ku, CHCHKuKuo, CHCHKuoLeung, MKMKLeungHsieh, KHKHHsieh2010-09-152018-06-282010-09-152018-06-282009-05http://ntur.lib.ntu.edu.tw//handle/246246/202627en-USCarbazole-oxadiazole containing polyurethanes as phosphorescent host for organic light emitting diodesjournal article