Angle-stable top-emitting white organic light-emitting devices employing a down-conversion layer |
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| Authors: | Shihao Liu Xuemei WenWenbo Liu Wei ZhangJing Yu Wenfa XieLetian Zhang |
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| Institution: | State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, People''s Republic of China |
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| Abstract: | Angle-stable white top-emitting organic light-emitting devices (WTEOLEDs) by the combination of a blue TEOLED with a down-conversion (DC) layer are demonstrated. The DC layer is composed of red fluorescent dye doped in a host of tris (8-hydroxy-quinolinato) aluminum. The TEWOLED shows a CIE coordinates of (0.240, 0.332) and a maximum current efficiency of 3.95 cd/A. Furthermore, the WTEOLED shows excellently angle-stable characteristic, the CIE coordinates at 20 mA/cm2 only shift by (0.023, −0.007) from 0° to 60°. It can be attributed to the angle-stable blue TEOLED based on the Ag/Ge/Ag transparent cathode. |
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| Keywords: | Woled Top-emitting Down-conversion layer |
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