Affiliation:
1. Guangdong Institute of Semiconductor Micro-Nano Manufacturing Technology, Foshan 528225, China
2. Key Laboratory of Nano-Devices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
3. Gusu Laboratory of Materials, Suzhou 215123, China
Abstract
Amorphous fluorine resin is a promising material that can be used for the encapsulation of deep-ultraviolet light-emitting diodes (DUV LEDs) to promote the light output, due to its light characteristics which mean it shows no absorption in the DUV wavelength region. However, obvious decay and high cost are the problems faced by fluorine resin. In this study, thin-fluorine-resin-film-packaged DUV LEDs were fabricated by the drip-coating method and the characteristics were tested. The results show that the light output power increased from 4.95 mW to 5.44 mW at 40 mA, and the cost of fluorine resin can be reduced to ~10%. In addition, no degradation during the aging was observed. However, when the light output power reached 12 mW or higher, >10% decay was observed after aging for 1000 h. In conclusion, thin-fluorine-resin-film-packaged DUV LEDs can achieve 10% light output power enhancement by using less fluorine resin material, and the material is more applicable to low-power DUV LEDs.
Funder
National Key R&D Program of China
Guangdong Province Key-Area R&D Program
Natural Science Foundation of China
Jiangxi Science and Technology Program
Strategic Priority Research Program of CAS
Key Research Program of Frontier Sciences, CAS
Bureau of International Cooperation, CAS
Key R&D Program of Jiangsu Province
Natural Science Foundation of Jiangsu Province
Suzhou Science and Technology Program
Subject
Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science
Cited by
1 articles.
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