A white OLED based on DPVBi blue light emitting host and DCJTB red dopant
Zheng, XY; Zhu, WQ; Wu, YZ; Jiang, XY; Sun, RG; Zhang, ZL; Xu, SH
| HERO ID | 3576270 |
|---|---|
| In Press | No |
| Year | 2003 |
| Title | A white OLED based on DPVBi blue light emitting host and DCJTB red dopant |
| Authors | Zheng, XY; Zhu, WQ; Wu, YZ; Jiang, XY; Sun, RG; Zhang, ZL; Xu, SH |
| Journal | Displays |
| Volume | 24 |
| Issue | 3 |
| Page Numbers | 121-124 |
| Abstract | A white organic light emitting diode (OLED) was fabricated in which a blue light emitting host DPVBi was doped with a red dye DCJTB. The device structure was ITO/CuPc/NPB/DPVBi:DCJTB/Alq/LiF/Al, where CuPc is copper phthalocyanine, NPB is NM-bis-(1-naphthyl)N,M-diphenyl-1,1'-biphenyl-4,4'-diamine, DPVBi is 4,4!-bis(2,2-diphenylvinyl)-1,1'-biphenyl, DCJTB is 4-(dicyanomethylene)-2-t-butyl-6(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran, and Alq is tris(8-quinolinolato) aluminium. White light emission was realized in an OLED with 0.08% DCJTB doping concentration by weight. The fabricated white OLED showed a little shift from blue to red with the increase of injection current, e.g. the CIE coordinates from (0.26, 0.32) at 4 mA/cm 2 current density to (0.24, 0.30) at 400 mA/cm(2) current density. The maximum luminance reaches 7822 cd/m(2), and the maximum luminous efficiency is 1.75 lm/W (2.45 cd/A) at 20 mA/cm(2). (C) 2003 Elsevier B.V. All rights reserved. |
| Doi | 10.1016/j.displa.2003.09.004 |
| Wosid | WOS:000188045000004 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Keyword | white organic light emitting diode; doping; 4,4 '-bis(2,2-diphenylvinyl)-1,1 '-biphenyl; 4-(dicyanomethylene)-2-t-butyl-6(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran |