Optical Properties,Electronic Energy Level Structure and Electroluminescent Characteristics of a new electroluminescent materials:(N,N'-bis(salicylidene)-ethylenediamine) zinc
会议名称:《第11届全国发光学学术会议》
会议日期:2007年
学科分类:0809[工学-电子科学与技术(可授工学、理学学位)] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 080502[工学-材料学] 0702[理学-物理学]
摘 要:A new EL material,(N,N’-bis(salicylidene)-ethylenediamine)zinc (Zn(salen))was synthesized and ***(salen)exhibited high thermal stability,excellent thin film forming *** HOMO,LUMO and electrochemical band gap were estimated to be -5.87 eV, -3.41 eV,and 2.46 eV by cyclic voltammetry,***(salen)powder exhibited bright blue emitting,but Zn(salen)film exhibited yellow emitting under radiation of 365 *** device ITO/CuPc/NPDIZn(salen)/Al could emit yellow *** EL peak was at about 555 nm with CIE coordinates ofx=0.504,y=*** device had a turn-on voltage of about 7.5 V and a brightness of about 301 cd/m at 30 *** current efficiency is about 1.6 cd/A.