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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/65174

    Title: 複合陣列微米與次微米藍寶石結構對LED整體出光效率;The complex array sapphire structure on the LED overall light extraction efficiency
    Authors: 劉俊賢;Liu,Chun-hsien
    Contributors: 光電科學與工程學系
    Keywords: LED出光效率;微米與次微米架構;LED light efficiency;micron and sub-micron structure
    Date: 2014-07-25
    Issue Date: 2014-10-15 14:42:34 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 本論文是討論複合陣列微米與次微米藍寶石結構對LED出光效率研究,進行實際的實做與分析,設定三個實驗方向
    ;The study discusses about the complex array and sapphire structure on the LED in an overall light extraction efficiency. The study composed of experiments and analyses. I came out with three experiments.

    1. If there are presence of photos or not, it will increase it′s lights.
    2.The amount of lightness between submicron and micron structure.
    3.The width and height of submicron and how does it influence light extraction efficiency.
    In order to know about these experiments′ results, I use chips from nano-imprint and dry etching, and I want to increase the reliability of the result of the experiment, so I will separate the chips to two batch of epitaxy. In each group, I distributed five chips.
    Experiment 1: The chip with a photo increase it′s light 59% up to 87%.
    Experiment 2: Light in submicron is so higher than in micron by 10% to 18%.
    Experiment 3: The biggest width and height of the chips are better than the smallest one, more than 3% to 5%.
    Appears in Collections:[光電科學研究所] 博碩士論文

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