| Summary: | 碩士 === 明新科技大學 === 化學工程與材料科技系碩士班 === 107 === In this study, the sol-gel methods were used for synthetic phosphor.
Aluminiumisopropoxide and yttrium aluminum garnet (YAG) are main research drug.
In the experiment add different inorganic rare earth elements(Ce3+、Eu3+、Gd3+) ,
different content of the Barium nitrate,sintering temperature to make different
phosphor. Finally, XRD and Fluorescence Spectrophotometer were used to analyze
form these phosphor.
Experimental results show that phosphor with high cerium nitrate content can
increase crystallinity. And the sintering at 1200 ° C of the phosphor is better than the
sintering at 900 ° C. when Al2O3:Y3+,Ce3+ phosphor use the excitation at 460 nm,
more Barium nitrate will influences strength that the emission at 475nm to 650nm.and
the sintering at 1200 ° C can have the emission at 350 nm of the excitation. Al2O3:Y3+,
Eu3+phosphor use the excitation at250 nm, more Barium nitrate will influences
strength that the emission at 575nm to 625nm. Al2O3:Y3+,Gd3+phosphor more Barium
nitrate will not influences strength that the emission.
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