کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1497523 | 1510800 | 2006 | 4 صفحه PDF | دانلود رایگان |
A multilayer white organic light-emitting diode (OLED) with high efficiency was present. The luminescent layer was composed of a red dye 4-(dicyanomethylene)-2-t-butyle-6-(1,1,7,7-tetra-methyljulolidyl-9-enyl)-4H-pyran (DCJTB) doped into N,N-bis-(1-naphthyl)-N,N-diphenyl-1,1-biphenyl-4-4-diamine (NPB) layer and a blue-emitting 9,10-bis-(β-naphthyl)-anthrene (DNA) layer. Red and blue emission, respectively, from DCJTB:NPB and DNA can be obtained by effectively controlling the thicknesses of DCJTB:NPB and DNA layers, thus a stable white light emission was achieved. The device turned on at 3.5 V, and the maximum luminance reached 16 000 cd/m2 at 21 V. The maximum current efficiency and power efficiency were 13.6 cd/A and 5.5 lm/W, respectively.
Journal: Optical Materials - Volume 28, Issues 8–9, June 2006, Pages 966–969