利用自組裝聚合 製作均勻且薄之螢光粉體為發光層

Make phosphor powder be smooth and thin emitting layer via molecular self-assembly properties

何立仁(Li-Jen Ho)

指導教授 ： 段葉芳

國立臺北科技大學/工程學院/化學工程所/碩士(2006年)

摘要

本實驗最終目的期望將黃色釔鋁石榴石螢光粉體(yttrium aluminum garnet，YAG)，能夠均勻的製作在藍色發光二極體上(Blue Light Emitting Diode Chip)，藉以增加白光發光二極體之發光效能；因藍光發光二極體價格較高，在初其實驗先以SiO2、ITO基板作為替代品，找出最佳條件時再以藍色發光二極體導入實驗。
實驗首先分別先在SiO2、ITO基板與釔鋁石榴石螢光粉體上，利用3 -甘油基丙基三甲基矽烷氧(3-Glycidoxypropyltrimethoxysilane ，GPTMOS)進行自組裝單分子膜之製備；在溶劑部分選擇乙醇與正己烷，而濃度則分別以0.005M、0.05M與0.5M，在加上溫度與反應時間的不同找出最佳自組裝聚合成膜條件，接著利用對苯二胺(p-Phenylenediamine，PPD)與3 -甘油基丙基三甲基矽烷氧(3-Glycidoxypropyltrimethoxysilane ，GPTMOS)進行開環反應，藉以將釔鋁石榴石螢光粉體製作在基板上形成薄層。
最後，期望藉由上述實驗最佳條件，利用多次成膜的方式將釔鋁石榴石螢光粉體製作在藍色發光二極體上，並且形成均勻薄層，以藍光搭配部份黃光形成白光發光二極體。

關鍵字

釔鋁石榴石 ； 烷氧基 ； 白光發光二極體 ； 自組性聚合

並列摘要

This experiment is to make YAG (yttrium aluminum garnet) be thin film on the blue light emitting diode chip smoothly for the purpose of increasing the efficiency of emitting of white light led. Since blue light emitting is with higher price, so boards that are made by SiO2 and ITO are as the substitutes in the beginning. After the optimum parameters are found, blue light emitting diode chip will be used for test and verification.
For preparing the single molecule film, we relied on GPTMOS (3-Glycidoxypropyltrimethoxysilane) proceeding molecular self-assembly properties on the board (that was made by SiO2 and ITO) and YAG powder. The experimental parameters were solvent, concentration, responding temperature and time. The solvents what we chose were ethanol and n-Hexane. And the concentrations what we chose were 0.005M, 0.05M and 0.5M individually. Then we used PPD (p-Phenylenediamine) and GPTMOS (3-Glycidoxypropyltrimethoxysilane) to proceed ring open reaction for the purpose of making YAG (yttrium aluminum garnet) be thin film on the boards.
Finally, we expect to use YAG powder to film on the blue light emitting diode chip smoothly and repeatedly via the optimum parameters. Then blue light emitting diode chip can collocate with yellow light to become white light led.

並列關鍵字

YAG ； Silane ； White light led ； molecular self-assembly properties

參考文獻

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