Novel High-Radiance Surface-Emitting Light Emitting Diode Structure with Circular 45° Corner Reflector and Microlens
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概要
- 論文の詳細を見る
A new type of light-emitting diode(LED) with a circular 45° corner reflector and microlens is proposed and fabricated. The improvement of light output power of the proposed LED structure is calculated and compared with that of the conventional surface-emitting LED type. A microlens is fabricated on LED using the UV curing method. The HBr–H3PO4–K2Cr2O7 chemical etchant is developed for fabricating the circular 45° corner reflector. The measured light-current curve of the proposed LED shows that, compared to conventional LEDs, the output power increases considerably at high current level and the linearity is significantly improved by the circular 45° corner reflector. From the spectra measurement, we can confirm that the proposed LED structure shows combined characteristics of both conventional surface- and edge-emitting LEDs.
- 2001-04-30
著者
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Kwon Young-se
Department Of E.e. Kaist
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Kim Moon-jung
Department Of Electrical Engineering And Computer Science Korea Advanced Institute Of Science And Te
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Cha Jung-ho
Department Of Anatomy
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Park Eun-hyun
Department Of Electrical Engineering Korea Advanced Institute Of Science And Technology
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Kim Moon-Jung
Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 373-1, Kusong-dong, Yusong-gu, Taejon, 305-701, Korea
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Park Eun-Hyun
Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 373-1, Kusong-dong, Yusong-gu, Taejon, 305-701, Korea
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