Al2O3 Powder Coating and Surface Texturing for High Efficiency GaN-Based Light Emitting Diodes
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概要
- 論文の詳細を見る
For high efficiency GaN-based light-emitting diodes (LEDs), Al2O3 powder coating and surface texturing were investigated using natural lithography and dry-etching methods to improve the light-output power of the GaN-based LED. The 300-nm-size Al2O3 powder is coated on the indium tin oxide (ITO) surface at various conditions using a spin-coating method. The morphologies of the ITO surface were observed using a scanning electron microscope. The Al2O3 powder is left on the ITO surface after surface-texturing to increase extraction efficiency. The light output powers of the surface-textured GaN-based LEDs coated with the Al2O3 powders are enhanced by ${\sim}66$% compared with the conventional LED at 20 mA.
- 2009-09-25
著者
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Kim Tae
School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, Gyeonggi 440-746, Korea
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Kim Seung
School of Advanced Materials Engineering, Chonbuk National University, Chonju-si, Chonbuk 561-756, Korea
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Yang Seong
School of Semiconductor and Chemical Engineering and Semiconductor Physics Research Center, Chonbuk National University, Jeonju 561-756, Korea
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Son Jeong
School of Semiconductor and Chemical Engineering and Semiconductor Physics Research Center, Chonbuk National University, Jeonju 561-756, Korea
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Hong Young
School of Semiconductor and Chemical Engineering and Semiconductor Physics Research Center, Chonbuk National University, Jeonju 561-756, Korea
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Yang Gye
School of Semiconductor and Chemical Engineering and Semiconductor Physics Research Center, Chonbuk National University, Jeonju 561-756, Korea
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Lee Keon
School of Semiconductor and Chemical Engineering and Semiconductor Physics Research Center, Chonbuk National University, Jeonju 561-756, Korea
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Kim Tae
School of Semiconductor and Chemical Engineering and Semiconductor Physics Research Center, Chonbuk National University, Jeonju 561-756, Korea
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Bae Seong
School of Semiconductor and Chemical Engineering and Semiconductor Physics Research Center, Chonbuk National University, Jeonju 561-756, Korea
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Shim Kyu
School of Semiconductor and Chemical Engineering and Semiconductor Physics Research Center, Chonbuk National University, Jeonju 561-756, Korea
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Yang Jeon
School of Semiconductor and Chemical Engineering and Semiconductor Physics Research Center, Chonbuk National University, Jeonju 561-756, Korea
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Kim Seung
School of Semiconductor and Chemical Engineering and Semiconductor Physics Research Center, Chonbuk National University, Jeonju 561-756, Korea
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