Top-Emission Organic Light Emitting Diode Fabrication Using High Dissipation Graphite Substrate
| Autor: | Fuh-Shyang Juang, Yu-Sheng Tsai, Lin-Ann Hong, Jian-Ji Huang, Kuan-Hung Yeh |
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| Rok vydání: | 2014 |
| Předmět: |
Fabrication
Materials science Article Subject Renewable Energy Sustainability and the Environment business.industry lcsh:TJ807-830 lcsh:Renewable energy sources chemistry.chemical_element Substrate (chemistry) General Chemistry Dissipation Luminance Copper Atomic and Molecular Physics and Optics chemistry OLED Optoelectronics General Materials Science Graphite Joule heating business |
| Zdroj: | International Journal of Photoenergy, Vol 2014 (2014) |
| ISSN: | 1687-529X 1110-662X |
| DOI: | 10.1155/2014/319390 |
| Popis: | This study uses a synthetic graphite fiber as the heat dissipation substrate for top-emission organic light emitting diode (TEOLED) to reduce the impact from joule heat. UV glue (YCD91) was spin coated onto the substrate as the insulation layer. The TEOLED structure is (glass; copper; graphite) substrate/YCD91 glue/Al/Au/EHI608/TAPC/Alq3/LiF/Al/Ag. The proposed graphite fiber substrate presents better luminous performance compared with glass and copper substrate devices with luminance of 3055 cd/m2and current efficiency of 6.11 cd/A at 50 mA/cm2. When lighting period of different substrates TEOLED, the substrate case back temperature was observed using different lighting periods. A glass substrate element operating from 5 to 25 seconds at 3000 cd/m2luminance produced a temperature rate of 1.207°C/sec. Under 4000 cd/m2luminance the copper and graphite substrate temperature rates were 0.125°C/sec and 0.088°C/sec. Graphite component lifetime was determined to be 1.875 times higher than the glass components and 1.125 times higher than that of copper. |
| Databáze: | OpenAIRE |
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