Photoluminescence and Electroluminescence Properties of 2,5-Bis[2,2′-bis(5-phenyl)-1,3,4-oxadiazole] Thiophene(T-OXD) and T-OXD/Poly(9-vinylcarbazole) Blends

作     者：ZHANGZhi-ming MAYu-guang LIGuo-wen SHENjia-cong 

作者机构：Key Laboratory for supram olecular Structure and Materials of M inistry of EducationJilin Universitychangchun130023P．R．China College of Chemistry and Chemical EngineeringOcean University of Qingdao，Qingdao 266003，P.R.China 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：2004年第20卷第1期

页      面：114-117页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：Supported by the National Natural Science Foundation of China(No. 20274015 20004004) and Research Fund of Jilin University 

主　　题：2,2'(2,5-Thiophenediyl) bis(5-phenyl)-1,3,4-oxadiazole(T-OXD) Photoluminescence Electroluminescence Electroplex LEDs 

摘      要：The photoluminescence(PL) and the electroluminescence(EL) properties of a novel organic compound, 2,5-bis(2,2′-bis(5-phenyl)-1,3,4-oxadiazole(T-OXD), were studied in chloroform and in a solid thin film. The PL and the EL properties of T-OXD/poly(9-vinylcarbazole)(PVK) blends were also studied, which contained various contents of T-OXD. The PL maximum emission peaks of T-OXD/PVK blends show gradual bathochromtic-shift with the increase of the T-OXD content. The EL spectra of T-OXD/PVK devices are similar to their PL spectra, and all the EL maximum emission peaks show bathochromtic-shift compared with the corresponding PL spectra, which is ascribed to the formation of electroplex. The turn-on voltages for ITO/T-OXD:PVK/Al devices decreased from 13.5 V of the device cotaining 0.1% T-OXD(mass fraction) to 5 V of the device containing 5% T-OXD, which suggests that T-OXD improves the energy level match between T-OXD and PVK and enhances the emission efficiency. The experimental results indicate that T-OXD can be used as a good electron transporting material.