本文主要研究内容
作者陈可欣（2019）在《WLED用双钙钛矿红色荧光粉A2B（W,Mo）O6:Eu3+,Na+的性能研究》一文中研究指出：白光LED作为第四代固体照明光源,具有体积小、发光效率高、节能环保、使用寿命长等优点,开辟了绿色照明光源的新时代,具有广阔的应用前景。然而目前白光LED用红色荧光粉相比蓝、绿荧光粉而言性能仍有不足,研制出一种与近紫外LED芯片有较好匹配,发光效率高,物理化学性质稳定,且发光颜色纯正的白光LED用红色荧光粉,对LED的发展具有重大的意义。本文采用传统高温固相法,通过升温至700oC保温1h,继续升温至1050oC煅烧2h,最后在1300oC高温反应4h的分阶段式煅烧工艺合成了白光LED用双钙钛红色荧光粉Sr2CaMoO6:Eu3+。XRD分析结果表明Sr2CaMoO6:Eu3+红色荧光粉具有正交晶系的钙钛矿结构,空间群为Pmm2,荧光光谱则表明其电荷迁移带覆盖近紫外区域,可被近紫外光有效激发产生较强的橙红光。探究不同的电荷补偿剂（M=Li+,Na+,K+）对Sr2Ca0.9Eu0.1MoO6发光性能的影响,在确定Na+为最佳电荷补偿剂后,制备A、B位Eu3+/Na+共掺杂于Sr2CaMoO6系列荧光粉,采用XRD和拉曼光谱的分析结果表明,Eu3+/Na+确实按化学配比掺入该体系的A、B位,且Eu3+掺杂A位时荧光发射强度虽低于B位,但其在紫外光激发下发射617nm处的红光。对A位掺杂的Sr2-2xEuxNaxCaMoO6性能探究发现Eu3+/Na+的最佳掺杂浓度为x=0.15,对荧光粉的发光浓度猝灭机理探究发现,Eu3+在Sr2CaMoO6基质中的能量传递机制为电偶极一电偶极的多极矩相互作用。探究不同W/Mo含量对Sr1.8Eu0.1Na0.1CaWyMO1-yO6荧光粉结构及发光性能的影响,综合考虑发光强度及CIE色坐标确定最佳W/Mo比为9:1,其CIE坐标为（0.663,0.3368）,与理想的红光十分接近,发射的红光颜色纯正,具有较高的饱和度,表明性能最佳配比Sr1.8Eu0.1Na0.1CaW0.9Mo0.1O6为有前景的新型红光荧光粉。采用紫外漫反射光谱测试其吸收光谱,计算出基质Sr2CaMoO6的吸收带为2.94ev,绘制出Sr2CaMoO6:Eu3+在紫外光（399nm）激发下能量传递过程的能级图。基于上述研究,采用电磁偶极跃迁之比作为荧光探针,对不同晶型结构的A2BMoO6:Eu3+,Na+(A=Sr2+,Ba2+;B=Ca2+,Mg2+,Zn2+)体系进行探究,初步总结正交系（Sr2CaMoO6）,四方系（Sr2ZnMoO6）、立方系（Ba2CaMoO6、Ba2ZnMoO6、Ba2MgMoO6）A、B位掺杂Eu3+,Na+后荧光发射光谱的电偶极跃迁与磁偶极跃迁之比与许容因子的联系。
Abstract
bai guang LEDzuo wei di si dai gu ti zhao ming guang yuan ,ju you ti ji xiao 、fa guang xiao lv gao 、jie neng huan bao 、shi yong shou ming chang deng you dian ,kai bi le lu se zhao ming guang yuan de xin shi dai ,ju you an kuo de ying yong qian jing 。ran er mu qian bai guang LEDyong gong se ying guang fen xiang bi lan 、lu ying guang fen er yan xing neng reng you bu zu ,yan zhi chu yi chong yu jin zi wai LEDxin pian you jiao hao pi pei ,fa guang xiao lv gao ,wu li hua xue xing zhi wen ding ,ju fa guang yan se chun zheng de bai guang LEDyong gong se ying guang fen ,dui LEDde fa zhan ju you chong da de yi yi 。ben wen cai yong chuan tong gao wen gu xiang fa ,tong guo sheng wen zhi 700oCbao wen 1h,ji xu sheng wen zhi 1050oCduan shao 2h,zui hou zai 1300oCgao wen fan ying 4hde fen jie duan shi duan shao gong yi ge cheng le bai guang LEDyong shuang gai tai gong se ying guang fen Sr2CaMoO6:Eu3+。XRDfen xi jie guo biao ming Sr2CaMoO6:Eu3+gong se ying guang fen ju you zheng jiao jing ji de gai tai kuang jie gou ,kong jian qun wei Pmm2,ying guang guang pu ze biao ming ji dian he qian yi dai fu gai jin zi wai ou yu ,ke bei jin zi wai guang you xiao ji fa chan sheng jiao jiang de cheng gong guang 。tan jiu bu tong de dian he bu chang ji （M=Li+,Na+,K+）dui Sr2Ca0.9Eu0.1MoO6fa guang xing neng de ying xiang ,zai que ding Na+wei zui jia dian he bu chang ji hou ,zhi bei A、Bwei Eu3+/Na+gong can za yu Sr2CaMoO6ji lie ying guang fen ,cai yong XRDhe la man guang pu de fen xi jie guo biao ming ,Eu3+/Na+que shi an hua xue pei bi can ru gai ti ji de A、Bwei ,ju Eu3+can za Awei shi ying guang fa she jiang du sui di yu Bwei ,dan ji zai zi wai guang ji fa xia fa she 617nmchu de gong guang 。dui Awei can za de Sr2-2xEuxNaxCaMoO6xing neng tan jiu fa xian Eu3+/Na+de zui jia can za nong du wei x=0.15,dui ying guang fen de fa guang nong du cu mie ji li tan jiu fa xian ,Eu3+zai Sr2CaMoO6ji zhi zhong de neng liang chuan di ji zhi wei dian ou ji yi dian ou ji de duo ji ju xiang hu zuo yong 。tan jiu bu tong W/Mohan liang dui Sr1.8Eu0.1Na0.1CaWyMO1-yO6ying guang fen jie gou ji fa guang xing neng de ying xiang ,zeng ge kao lv fa guang jiang du ji CIEse zuo biao que ding zui jia W/Mobi wei 9:1,ji CIEzuo biao wei （0.663,0.3368）,yu li xiang de gong guang shi fen jie jin ,fa she de gong guang yan se chun zheng ,ju you jiao gao de bao he du ,biao ming xing neng zui jia pei bi Sr1.8Eu0.1Na0.1CaW0.9Mo0.1O6wei you qian jing de xin xing gong guang ying guang fen 。cai yong zi wai man fan she guang pu ce shi ji xi shou guang pu ,ji suan chu ji zhi Sr2CaMoO6de xi shou dai wei 2.94ev,hui zhi chu Sr2CaMoO6:Eu3+zai zi wai guang （399nm）ji fa xia neng liang chuan di guo cheng de neng ji tu 。ji yu shang shu yan jiu ,cai yong dian ci ou ji yue qian zhi bi zuo wei ying guang tan zhen ,dui bu tong jing xing jie gou de A2BMoO6:Eu3+,Na+(A=Sr2+,Ba2+;B=Ca2+,Mg2+,Zn2+)ti ji jin hang tan jiu ,chu bu zong jie zheng jiao ji （Sr2CaMoO6）,si fang ji （Sr2ZnMoO6）、li fang ji （Ba2CaMoO6、Ba2ZnMoO6、Ba2MgMoO6）A、Bwei can za Eu3+,Na+hou ying guang fa she guang pu de dian ou ji yue qian yu ci ou ji yue qian zhi bi yu hu rong yin zi de lian ji 。
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论文作者分别是来自浙江工业大学的陈可欣，发表于刊物浙江工业大学2019-06-03论文，是一篇关于白光论文,双钙钛矿论文,红色荧光粉论文,浙江工业大学2019-06-03论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自浙江工业大学2019-06-03论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：白光论文; 双钙钛矿论文; 红色荧光粉论文; 浙江工业大学2019-06-03论文;