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A white organic light emitting diode with improved stability
| Content Provider | Scilit |
|---|---|
| Author | Zhi-Lin, Zhang Xue-Yin, Jiang Wen-Qing, Zhu Bu-Xin, Zhang Shao-Hong, Xu |
| Copyright Year | 2001 |
| Description | Journal: Journal of Physics D: Applied Physics A white organic light emitting diode (OLED) has been constructed by employing a new blue material and a red dye directly doped in the blue emitting layer. For comparison, another white cell with a blocking layer has also been made. The configurations of the devices are ITO/CuPc/NPB/JBEM(P):DCJT/Alq/MgAg (device 1) and ITO/CuPc/NPB/TPBi:DCJT/Alq/MgAg (device 2) where copper phthalocyanine (CuPc) is the buffer layer, N,N'-bis-(1-naphthyl)-N,N'-diphenyl-1.1'bipheny1-4-4'-diamine (NPB) is the hole transporting layer, 9,10-bis(3'5'-diaryl)phenyl anthracene doped with perylene (JBEM(P)) is the new blue emitting material, N,arylbenzimidazoles (TPBi) is the hole blocking layer, tris(8-quinolinolato)aluminium complex (Alq) is the electron transporting layer, and DCJT is a red dye. A stable and current independent white OLED has been obtained in device 1, which has a maximum luminance of 14 850 cd $m^{-2}$, an efficiency of 2.88 Lm $W^{-1}$, Commission Internationale de l'Eclairage coordinates of x = 0.32, y = 0.38 between 4-200 mA $cm^{-2}$, and a half lifetime of 2860 h at the starting luminance of 100 cd $m^{-2}$. Device 1 has a stability more than 50 times better than that of device 2. |
| Related Links | http://iopscience.iop.org/article/10.1088/0022-3727/34/20/313/pdf |
| Ending Page | 3087 |
| Page Count | 5 |
| Starting Page | 3083 |
| ISSN | 00223727 |
| e-ISSN | 13616463 |
| DOI | 10.1088/0022-3727/34/20/313 |
| Journal | Journal of Physics D: Applied Physics |
| Issue Number | 20 |
| Volume Number | 34 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2001-10-09 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics D: Applied Physics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Acoustics and Ultrasonics Condensed Matter Physics Electronic, Optical and Magnetic Materials |
