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Pure RGB Emissions Based on a White OLED Combined with Optical Colour Filters |
| WU Xiao-Ming1,2;HUA Yu-Lin1;WANG Zhao-Qi2;YIN Shou-Gen1;ZHENG Jia-Jin2;DENG Jia-Chun1;M. C. Petty3 |
| 1Institute of Material Physics, Tianjin University of Technology, Tianjin 300191
2Institute of Modern Optics, Nankai University, Tianjin 300071
3Centre for Molecular and Nanoscale Electronics, University of Durham, Durham DH1 3LE, UK |
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| Cite this article: |
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WU Xiao-Ming, HUA Yu-Lin, WANG Zhao-Qi et al 2006 Chin. Phys. Lett. 23 1012-1014 |
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Abstract We report on a white organic light emitting device (OLED) with a single light emitting layer consisting of a greenish-white emitting host bis-(2-(2-hydroxyphenyl) benzothiazole)zinc (Zn(BTZ)2) and an orange-red dopant 5,6,11,12-tetraphenylnaphthacene (rubrene). The Commission Internationale De L'Eclairage (CIE) coordinates, external quantum efficiency, and brightness of the white OLED are (0.341, 0.334), 0.63% and 4000Cd/m2 at the bias of 20V, respectively. Pure red-green-blue (RGB) emissions have been successfully achieved from the white OLED combined well with several built-in optical colour filters (CFs). The CIE coordinates of the white mixture calculated in theory are very close to the coordinates of the white mixture which recorded with spectrophotometer in practice.
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| Keywords:
78.60.Fi
85.60.Jb
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Published: 01 April 2006
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