固相法及燃烧法合成YMoOEu荧光粉及荧光性能研究.docx

固相法及燃烧?法合成Y2M?oO6:Eu3+荧光粉及荧光?性能研究摘要荧光粉的合成?方法对其性能?有很大影响，适当的合成方?法可以有效的?提高荧光粉的?性能。传统的固相法?合成的荧光粉?性能优秀，不过也存在一?定的不足，如：反应的温度相?当的高，制备需要的时?间也非常的长?，能耗相对来说?也不低等，在一定程度上?增加了制备的?成本。相对而言，燃烧法的合成?温度较低，反应时间较短?，在一定程度上?弥补了固相法?的缺点。因此，本文选取Y2?MoO6为基?质材料，通过掺杂Eu?3+离子合成具有?红色荧光的荧?光粉。采用燃烧法和?传统的固相法?进行对比，研究了不同合?成方法对其荧?光性能的研究?。并通过TG-DSC﹑DRX﹑SEM扫描电?镜﹑激发发射光谱?等表征方法来?对我们制备的?物质的结构、形状样貌还有?光谱特征做了?一系列的实验?探究和学习。通过对测试结?果分析可知，两种方法均可?制备出具有纯?相的Y2Mo?O6:Eu3+荧光粉。通过对荧光光?谱分析可知，固相法合成的?样品在100?0℃下具有最高的?荧光发射；而燃烧法合成?的样品在11?00℃下表现出最好?的荧光性能。关键词：结晶性；燃烧法；固相法；Y2MoO6?:Eu3+；荧光性能。Abstra?ct?The?way?of?compou?nding?phosph?or?has?a?major?impact??on?its?perfor?mance,?which?can?be?improv?ed?by?some?proper??synthe?tic?ways.?It?can?not?be?denied??that?tradit?ional?Solid-phase?method??makes?the?perfor?mance?of?phosph?or?excell?ent.?Howeve?r,?it?needs?a?higher??compou?nding?temper?ature,?longer??reacti?on?time?as?well?as?higher??energy??consum?ption,?which?adds?up?the?cost?of?produc?tion?to?some?extent?.?Compar?ativrl?y?speaki?ng,?Combus?tion?method??has?severa?l?advant?ages?that?can?make?up?for?the?Solid-phase?method?.?Such?as?lower?compou?nding?temper?ature?and?shorte?r?reacti?on?time.?Thus,?this?passag?e?choose???as?a?basic?materi?al,?adding???to?compou?nd?the?phosph?or?with?red?fluore?scent.?There?is?a?compar?ison?betwee?n?the?Combus?tion?method??and?tradit?ional?Solid-phase?method?,?which?meets?our?needs?to?study?how?perfor?mance?can?be?impact?ed?by?differ?ent?synthe?tic?ways.?What’s?more,?we?are?able?to?study?and?analyz?e?the?phase?struct?ure,?the?shape?as?well?as?the?spectr?al?proper?ties?of?the?synthe?tic?materi?al?system?atical?ly.?The?charac?teriza?tion?method?s?to?study?and?analyz?e?the?phase?struct?ure??like?scanni?ng?electr?on?micros?cope?and?stimul?ating?emissi?on?spectr?um?such?as?TG-DSC,?DRX?and?SEM?are?availa?ble.?Throug?h?analyz?ing?the?result??of?the?test,?it?can?be?conclu?ded?that?both?of?these?two?ways?can?conpou?nd?,?the?phosph?or?with?.?In?genera?l,?the?sample?s?conpou?nded?by?the?Solid-phase?method??have?the?hig