Enabling Lambertian-Like Warm White Organic Light-Emitting Diodes with a Yellow Phosphor Embedded Flexible Film
| Autor: | Zong Yi Tu, Li Ling Lee, Huang Yu Lin, Chien-Chung Lin, Jin Han Wu, Ming Shan Jeng, Hao-Chung Kuo, Jwo-Huei Jou, Cheng-Chang Chen, Cheng Hung Li |
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| Rok vydání: | 2014 |
| Předmět: |
Spin coating
Materials science Article Subject Polydimethylsiloxane Renewable Energy Sustainability and the Environment business.industry lcsh:TJ807-830 lcsh:Renewable energy sources Phosphor General Chemistry Color temperature Electroluminescence Luminance Atomic and Molecular Physics and Optics Luminous flux chemistry.chemical_compound Optics chemistry OLED Optoelectronics General Materials Science business |
| Zdroj: | International Journal of Photoenergy, Vol 2014 (2014) |
| ISSN: | 1687-529X 1110-662X |
| DOI: | 10.1155/2014/851371 |
| Popis: | We demonstrate in this report a new constructive method of fabricating white organic light-emitting devices (OLEDs) with a flexible plastic film embedded with yellow phosphor. The flexible film is composed of polydimethylsiloxane (PDMS) and fabricated by using spin coating followed by peeling technology. From the results, the resultant electroluminescent spectrum shows the white OLED to have chromatic coordinates of 0.38 and 0.54 and correlated color temperature of 4200 K. The warm white OLED exhibits the yield of 10.3 cd/A and the luminous power efficiency of 5.4 lm/W at a luminance of 1000 cd/m2. A desirable Lambertian-like far-field pattern is detected from the white OLEDs with the yellow phosphor containing PDMS film. This method is simple, reproducible, and cost-effective, proving to be a highly feasible approach to realize white OLED. |
| Databáze: | OpenAIRE |
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