White organic light emitting devices with a color conversion layer  

作　　者：齐青瑾 吴晓明 华玉林 董木森 印寿根 

机构地区：[1]Key Laboratory of Display Materials and Photoelectric Devices,Ministry of Education [2]Tianjin Key Laboratory for Photoelectric Materials and Devices,School of Materials Science and Engineering,Tianjin University of Technology

出　　处：《Optoelectronics Letters》2010年第4期245-248,共4页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No. 60906022);the Scientific Developing Foundation of Tianjin Education Commission (No. 20070805)

摘　　要：A white organic light emitting device(WOLED) combining the blue organic light emitting device with a red color conversion layer(CCL) is reported,which includes a fluorescent material N-(4-((E)-2-(6-((E)-4-(diphenylamino) styryl)naphtha len-2-yl)vinyl) phenyl)-N-phenylbenzenamine(N-BDAVBi) doped into 4,4'-N,N'-dicarbazole-biphenyl(CBP) as the blue light emitting layer,and the poly(2-methoxy-5-(2'-ethylhexoxy)-1,4-phenylene vinylene(MEH-PPV) as a red CCL.By optimizing the concentration of MEH-PPV in the CCL,a good white light emission is obtained,which shows that the stable CIE coordinates of(0.33,0.34) will have a slight change when the driving voltage is increased from 6 to 11 V.The maximum brightness and current efficiency of the optimized device are 11294 cd/m2 and 6.4 cd/A,respectively.A white organic light emitting device（WOLED） combining the blue organic light emitting device with a red color conversion layer（CCL） is reported,which includes a fluorescent material N-（4-（（E）-2-（6-（（E）-4-（diphenylamino） styryl）naphtha len-2-yl）vinyl） phenyl）-N-phenylbenzenamine（N-BDAVBi） doped into 4,4＇-N,N＇-dicarbazole-biphenyl（CBP） as the blue light emitting layer,and the poly（2-methoxy-5-（2＇-ethylhexoxy）-1,4-phenylene vinylene（MEH-PPV） as a red CCL.By optimizing the concentration of MEH-PPV in the CCL,a good white light emission is obtained,which shows that the stable CIE coordinates of（0.33,0.34） will have a slight change when the driving voltage is increased from 6 to 11 V.The maximum brightness and current efficiency of the optimized device are 11294 cd/m2 and 6.4 cd/A,respectively.

关 键 词：白色有机发光器件 转换层 色彩 WOLED 荧光材料 白光发射 驱动电压 电流效率 

分 类 号：TN312.8[电子电信—物理电子学]