基于Firpic发光的高效率蓝色有机发光器件  

High efficiency blue organic light-emitting device based on Firpic

作　　者：王广德[1] 刘铁功[1] 张刚[1] 赵雷[1] 姜文龙[1] 李同[2] 张天瑜[2] 谢文法[2] 

机构地区：[1]吉林师范大学信息技术学院,吉林四平136000 [2]吉林大学电子科学与工程学院,集成光电子学国家重点联合实验室,吉林长春130012

出　　处：《光电子．激光》2011年第9期1283-1285,共3页Journal of Optoelectronics·Laser

基　　金：国家青年基金资助项目(10804036);国家自然科学基金资助项目(60707016,60723002,60937001);吉林省科技发展计划资助项目(20080528,20082112,20100510,20101512);吉林省教育厅科研计划资助项目(吉教科合字[2007]第154号)

摘　　要：为了充分利用发光层中主客体间的能量转移和空穴阻挡层(HBL)的空穴阻挡作用,制作了结构为ITO/m-MTDATA(25 nm)/NPB(15 nm)/Ir(ppz)3(10 nm)/Simcp:Firpic(30 nm,6%)/HBL(35 nm)/LiF(1 nm)/Al(200 nm)的高效率蓝光器件,研究了3种类型的HBL对蓝光器件电流效率的影响。结果表明,HOMO能级较低的BCP是性能最好的空穴阻挡材料,以其为HBL,当厚度为35 nm时,8 V电压下器件的最大电流效率达到14.57 cd/A。In order to make full use of energy transferring and hole blocking between the subject and the object in the light-emitting layer,the high efficiency blue light device is fabricated,whose structure is ITO/m-MTDATA（25 nm）/NPB（15 nm）/Ir（ppz）3（10 nm）/Simcp：Firpic（30 nm,6%）/HBL（35 nm）/ LiF（1 nm）/Al（200 nm）.We have studied the effect of three different hole blocking layers on the current efficiency of blue light devices.The results has demonstrated that the material BCP,whose HOMO level is lower,has more influence on current efficiency.When the blocking layer is BCP and its thickness is 35 nm,the maximum current efficiency can reach 14.57 cd/A at 8 V bias voltage.

关 键 词：电流效率 HOMO能级 空穴阻挡层(HBL) 

分 类 号：TN383[电子电信—物理电子学]