基于Firpic发光的高效率蓝色有机发光器件

Journal of Optoelectronics.Laser(2011)

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Abstract
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。
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Key words
Current efficiency,Hole blocking layer (HBL),HOMO level
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