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National Chung Hsing University Institutional Repository - NCHUIR > 理學院 > 物理學系所 > 依資料類型分類 > 碩博士論文 >  銦錫氧化層蝕孔對綠色發光二極體光萃取效率之影響

Please use this identifier to cite or link to this item: http://nchuir.lib.nchu.edu.tw/handle/309270000/153127

標題: 銦錫氧化層蝕孔對綠色發光二極體光萃取效率之影響
The influence of etched voids in indium tin oxide layer on the light extraction efficiency of a green light emitting diode
作者: 林宗毅
Lin, Zong-Yi
Contributors: 龔志榮
Jyh-Rong Gong
物理學系所
關鍵字: 銦錫氧化物;透明導電薄膜;光萃取效率
ITO;transparent conductive layer;light extraction efficiency
日期: 2013
Issue Date: 2013-11-18 13:45:22 (UTC+8)
Publisher: 物理學系所
摘要: 本論文探討ITO內蝕孔對透明導電薄膜於綠光LED之光萃取率(light extraction efficiency)之影響。研究採用電子束蒸鍍(e-gun evaporation)生長250 nm厚之ITO透明導電薄膜於LED之p-GaN層上,並分別蝕刻直徑為6 μm、8 μm、10 μm及12 μm大小之蝕孔於ITO以探討蝕孔對LED光萃取率的影響。研究發現,在20 mA條件,ITO內蝕孔對LED之光萃取率有幫助,ITO經蝕孔處理過後之LED,當蝕孔大小為6 μm時,光萃取率最大約為5.63%。
In this thesis, we investigated the effect of etched voids in the ITO layer of green LED on the light extraction of the LED efficiency. ITO layer, 250 nm in thickness, was deposited on a green LED wafer by e-gun evaporation. Etched voids were developed in the ITO layer by photolithography with the void sizes being 6 μm, 8 μm, 10 μm and 12 μm, respectively. It was found that all the LEDs having etched voids in ITO layers exhibited improved light extraction efficiency. An enhanced light extraction of 5.63 % occurs in the LED having etched voids of 6 μm diameter under 20 mA condition.
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