一种新颖的空穴阻挡材料的合成、表征与空穴阻挡特性研究  

Synthesis, characterization and study of hole-blocking performance of novel hole-blocking material

作　　者：王鹏[1,2] 李会增[1] 张海全[1] 

机构地区：[1]燕山大学亚稳材料制备技术与科学国家重点实验室,河北秦皇岛066004 [2]长城汽车股份有限公司,河北保定071000

出　　处：《燕山大学学报》2012年第2期141-144,149,共5页Journal of Yanshan University

基　　金：国家自然科学基金资助项目(51173155);河北省自然科学基金资助项目(E2010001182)

摘　　要：利用Yamamoto偶联反应合成了间位连接双氧桥联的联苯衍生物(MDBP)。循环伏安法及吸收光谱分析表明MDBP具有较低的HOMO能级(6.12 eV)和较高的氧化电位(2.5 V);利用结构ITO/NPB/MDBP/Alq3/Li/Al的多层器件,探讨了MDBP厚度、电压对空穴阻挡性能的影响,结果表明较高电压下该材料对空穴的阻挡能力与BCP相当。并利用MDBP为空穴阻挡层制备了白光器件。MDBP （meta-linkagedouble-oxygenbridgedbiphenylderivatives） is synthesized in terms ofYamamoto reaction. The analyses of cyclic voltammetry and Uv-Vis spectra indicates that MDBP has lower HOMO level （-6.12 eV） and higher oxidation potential （-2.5 eV）. The effect of thickness of MDBP layer and driving voltage on hole-blocking performance are discussed using multilayer organic light-emitting devices. The results indicate that the ability of blocking holes of MDBP layer depends on its thickness and driving voltage. In addition, white-tight-emitting devices based on MDBP as hole-blocking laye is prepared, and its performance is also discussed.

关 键 词：间位连接 桥联联苯 空穴 白光器件 

分 类 号：O641[理学—物理化学]