One-Shot Exposure for Patterning Two-Dimensional Photonic Crystals to Enhance Light Extraction of InGaN-Based Green LEDs
To promote the feasibility of using photonic crystals to enhance light extraction of light-emitting diodes (LEDs) for industrial applications, the request for the high-yield and simple exposure process to pattern two-dimensional photonic crystals (2DPCs) becomes rather urgent. In this work, we devel...
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| Veröffentlicht in: | IEEE photonics technology letters 2008-01, Vol.20 (2), p.141-143 |
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| container_title | IEEE photonics technology letters |
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| creator | Mei-Li Hsieh Kuo-Chang Lo Yi-Sheng Lan Yang, S.Y. Lin, C.H. Liu, H.M. Kuo, H.C. |
| description | To promote the feasibility of using photonic crystals to enhance light extraction of light-emitting diodes (LEDs) for industrial applications, the request for the high-yield and simple exposure process to pattern two-dimensional photonic crystals (2DPCs) becomes rather urgent. In this work, we developed a one-shot three-beam laser interference system to fabricate a 2DPC on an InGaN-based green LED to address its performance for backlight display applications. Using the current exposure system we develop here, a submicro-patterned area of 6 mm in diameter can be achieved. The experimental results show that the operating voltage of a 1 times 1 mm 2 in-area LED incorporated with the 2DPC is around 4 V, and the light extraction efficiency is enhanced by a factor of 2.1. |
| doi_str_mv | 10.1109/LPT.2007.912510 |
| format | Article |
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In this work, we developed a one-shot three-beam laser interference system to fabricate a 2DPC on an InGaN-based green LED to address its performance for backlight display applications. Using the current exposure system we develop here, a submicro-patterned area of 6 mm in diameter can be achieved. 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| subjects | Costs Electric potential Extraction Feasibility Holography Interference Lasers Light emitting diodes light-emitting diode (LED) Lighting Liquid crystal displays Manufacturing photonic crystal Photonic crystals Research and development Two dimensional Voltage |
| title | One-Shot Exposure for Patterning Two-Dimensional Photonic Crystals to Enhance Light Extraction of InGaN-Based Green LEDs |
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