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1. 中国科学院大学 北京,中国,100049
2. 中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室,吉林 长春,130022
收稿日期:2013-04-22,
修回日期:2013-07-05,
纸质出版日期:2013-10-15
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包兴臻, 梁静秋, 梁中翥, 田超, 秦余欣, 王维彪. AlGaInP-LED微阵列单元侧反射对出光效率的影响[J]. 液晶与显示, 2013,28(5): 726-731
BAO Xing-zhen, LIANG Jing-qiu, LIANG Zhong-zhu, TIAN Chao, QING Yu-xin, WANG Wei-biao. Effect of AlGaInP-LED Arrays Units Side-Reflection on Light Output Efficiency[J]. , 2013,28(5): 726-731
包兴臻, 梁静秋, 梁中翥, 田超, 秦余欣, 王维彪. AlGaInP-LED微阵列单元侧反射对出光效率的影响[J]. 液晶与显示, 2013,28(5): 726-731 DOI: 10.3788/YJYXS20132805.0726.
BAO Xing-zhen, LIANG Jing-qiu, LIANG Zhong-zhu, TIAN Chao, QING Yu-xin, WANG Wei-biao. Effect of AlGaInP-LED Arrays Units Side-Reflection on Light Output Efficiency[J]. , 2013,28(5): 726-731 DOI: 10.3788/YJYXS20132805.0726.
LED微阵列器件具有体积小、分辨率高、寿命长及耗能低等突出特点。出光效率是该器件的一项重要参数
文中对以AlGaInP外延片为基片的LED微阵列器件的出光效率进行了理论及实验研究。器件的像素周期设计为100
m100
m
发光单元间的上隔离沟槽宽度为20
m、深度为25
m
将在600~650 nm波段具有高反射率的均匀掺单晶硅纳米颗粒的聚酰亚胺作为复合材料来填充上隔离沟槽
将侧面出射的光反射到上表面
实现了相邻两个发光单元之间的光学和电学隔离。分析计算表明
通过填充硅纳米颗粒/聚酰亚胺复合膜材料
使每个发光单元侧面出射光的16.695%反射回窗口层
提高了出光效率。这项研究将有助于提高LED微阵列器件的出光效率。
LED micro-arrays apparatus has many outstanding characteristics
such as small bulk
high resolving power
long life
low wear out power and so on. Lighting output efficiency is an important parameter. The text made theoretic and experiment study for LED micro-arrays apparatus on AlGaInP wafer. The arrays apparatus image sizes is 100
m100
m. Etching upper isolating groove with the deep width ratio was 25
m :20
m between adjacent light-emitting unit. Then filling the groove with mixed Si granule that has high reflect to 600~650 nm wave band into polyurethane. This hybrid materials can reflect lateral light to above surface
not only improve light efficiency of micro arrays apparatus
but also realize light and electric seclusion of two adjacent light-emitting unit. Theoretical calculation indicate that the multiple film can reflect each light-emitting unit the light of side-wall 16.695% to window layer
it improves lighting output efficiency availably. The study administers to the improvement of lighting output efficiency for LED micro-arrays apparatus.
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