This paper reports the fabrication of novel white organic light-emitting device(WOLED)by using a high efficiency blue fluorescent dye N-(4-((E)-2-(6-((E)-4-(diphenylamino)styryl)naphthalen-2-yl)vinyl)phenyl)oN-phenylb...This paper reports the fabrication of novel white organic light-emitting device(WOLED)by using a high efficiency blue fluorescent dye N-(4-((E)-2-(6-((E)-4-(diphenylamino)styryl)naphthalen-2-yl)vinyl)phenyl)oN-phenylbenzenamine(N-BDAVBi)and a red phosphoresecent dye bis(1-(phenyl)isoquinoline)iridium(III)acetylanetonate(Ir(piq)2(acac)).The configuration of the device was ITO/PVK:TPD/CBP:N-BDAVBi/CBP/BALq:Ir(piq)2(acac)/BCP/Alq3/LiF:AL.By adjusting the proportion of the dopants(N-BDAVBi,Ir(piq)2(acac))in the light-emitting layer,white light with Commission Internationale de l'Eclairage(CIE)coordinates of(0.35,0.35)and a maximum luminance of 25350cd/m2 were obtained external quantum and current efficiency of 6.78%and between the two light-emitting layers and using BCP at an applied voltage of 22V.The WOLED exhibits maximum 12cd/A respectively.By placing an undoped spacer CBP layer as hole blocking layer,the colour stabilization slightly changed when the driving voltage increased from 6 to 22 V.展开更多
文摘This paper reports the fabrication of novel white organic light-emitting device(WOLED)by using a high efficiency blue fluorescent dye N-(4-((E)-2-(6-((E)-4-(diphenylamino)styryl)naphthalen-2-yl)vinyl)phenyl)oN-phenylbenzenamine(N-BDAVBi)and a red phosphoresecent dye bis(1-(phenyl)isoquinoline)iridium(III)acetylanetonate(Ir(piq)2(acac)).The configuration of the device was ITO/PVK:TPD/CBP:N-BDAVBi/CBP/BALq:Ir(piq)2(acac)/BCP/Alq3/LiF:AL.By adjusting the proportion of the dopants(N-BDAVBi,Ir(piq)2(acac))in the light-emitting layer,white light with Commission Internationale de l'Eclairage(CIE)coordinates of(0.35,0.35)and a maximum luminance of 25350cd/m2 were obtained external quantum and current efficiency of 6.78%and between the two light-emitting layers and using BCP at an applied voltage of 22V.The WOLED exhibits maximum 12cd/A respectively.By placing an undoped spacer CBP layer as hole blocking layer,the colour stabilization slightly changed when the driving voltage increased from 6 to 22 V.
