YPO_4·2H_2O∶Eu~(3+)花状微米结构的合成及荧光性能研究
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摘要
在无添加剂条件下,采用共沉淀法合成了花状独居石结构的YPO_4·2H_2O∶Eu~(3+)橙红色荧光粉。利用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、光致发光光谱(PL)等分析手段对样品的结构、形貌以及发光性能进行了表征。研究了Eu~(3+)掺杂浓度、pH值、磷酸量、合成温度对合成纳米材料的发光性能以及形貌的影响。结果表明,所合成的花状独居石结构的YPO_4·2H_2O∶Eu~(3+)橙红色荧光粉,在392nm紫外光激发下,观察到YPO_4·2H_2O∶Eu~(3+)的发射主峰位置在589nm处。当条件分别为掺杂浓度29%、pH=8、磷酸添加量为7mL、合成温度为80℃时样品具有最强的发光强度。在紫外灯照射下,样品呈现出明亮的橙红色。
Under the condition of no additives,the flower-like,monazite structure YPO_4·2H_2O∶Eu~(3+)orange-red phosphor was synthesized using coprecipitation method.The crystal structure,morphology and luminescence properties of products were characterized by X-ray diffraction patterns(XRD),scanning electron microscopy(SEM),photoluminescence spectroscopy(PL)and so on.It was discussed that the effect of Eu~(3+)doping concentration,pH value,the amount of phosphoric acid and synthesis temperature on the luminescent properties and the morphology of nanomaterials.The results showed that under the 392 nm ultraviolet excitation,YPO_4·2H_2O∶Eu~(3+)emission peak position at 589 nm was observed.When the conditions of doping concentration of 29%,pH =8,phosphoric acid added amount 7mL and the synthesis temperature was 80℃,the samples had the strongest emission intensity.Under ultraviolet light,the samples exhibited a bright orange-red.
Under the condition of no additives,the flower-like,monazite structure YPO_4·2H_2O∶Eu~(3+)orange-red phosphor was synthesized using coprecipitation method.The crystal structure,morphology and luminescence properties of products were characterized by X-ray diffraction patterns(XRD),scanning electron microscopy(SEM),photoluminescence spectroscopy(PL)and so on.It was discussed that the effect of Eu~(3+)doping concentration,pH value,the amount of phosphoric acid and synthesis temperature on the luminescent properties and the morphology of nanomaterials.The results showed that under the 392 nm ultraviolet excitation,YPO_4·2H_2O∶Eu~(3+)emission peak position at 589 nm was observed.When the conditions of doping concentration of 29%,pH =8,phosphoric acid added amount 7mL and the synthesis temperature was 80℃,the samples had the strongest emission intensity.Under ultraviolet light,the samples exhibited a bright orange-red.
引文
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[16]杨继兰,王卓,刘慧,等.用燃烧法和沉淀法制备橙红色Sr5(PO4)3X∶Eu3+,Na+(X=F,Cl)荧光粉[J].硅酸盐学报,2011,39(6):913-917.
[17]王婷,宋荷娟,黄莹,等.YPO4∶Eu微米束的尿素辅助水热合成及其发光性能[J].化学研究,2011,22(6):73-75.
[2]苏毅国,刘琼,李广社,等.Eu3+掺杂YPO4的合成、结构及发光特性研究[J].中国稀土学报,2008,26(2):221-224.
[3]狄卫华,王晓君,陈宝玖,等.YPO4∶Tb荧光粉的制备及其VUV激发下的发光性能[J].发光学报,2005,26(5):40-44.
[4]李许波,丁建红,黄奇书,等.紫外光激发(Y,Ce)PO4荧光粉的发光特性[J].材料研究与应用,2014,8(1):42-45.
[5]杨念华,周立群,周立蓉.纳米稀土磷酸盐红色荧光粉的合成及性能[J].化学研究,2006,17(4):14-16.
[6]Nedelec J M,Mansuy C,Mahiou R.Sol-gel derived YPO4and LuPO4phosphors,a spectroscopic study[J].Journal of Molecular Structure,2003,651:165-170.
[7]谢婷,郭鸿旭,何裕能,等.氧空位缺陷对绿色长余辉发光材料α-Zn3(PO4)2∶Mn2+,Na+发光性能的改善作用[J].硅酸盐学报,2015,43(7):969-974.
[8]Wuled Lenggoro I,Xia B,Mizushima H,et al.Synthesis of LaPO4∶Ce,Tb phosphor particles by spray pyrolysis[J].Materials Letters,2001,50(2):92-96.
[9]王志军,刘海燕,杨勇,等.Ba2Ca(PO4)2∶Eu2+蓝色荧光粉的合成及其发光特性[J].物理学报,2014,63(7):328-334.
[10]杨志平,刘利鹏,梁晓双,等.Sr3Y(PO4)3∶Sm3+荧光粉的制备及发光特性[J].硅酸盐学报,2014,42(3):330-334.
[11]李臣,李永进,宋志国,等.铋激活碱土金属氟磷酸盐的制备及其发光性质[J].硅酸盐学报,2013,41(4):511-515.
[12]张佳,王育华,王丹.纳米YPO4∶Eu3+的合成及发光性质研究[J].物理学报,2009,58(10):7267-7271.
[13]刘成露,贾佩云,王芳,等.纳米棒束YPO4∶Eu的合成及其发光性能[J].合成化学,2011,19(4):516-519.
[14]赖华生,陈宝玖,许武,等.稀土钒磷酸盐荧光粉的共沉淀法合成及光致发光[J].中国稀土学报,2005,23(1):31-35.
[15]冯宗玉,黄小卫,王猛,等.共沉淀-热处理工艺合成(La,Ce,Tb)PO4荧光粉的研究[J].稀有金属材料与工程,2013,42(S2):375-378.
[16]杨继兰,王卓,刘慧,等.用燃烧法和沉淀法制备橙红色Sr5(PO4)3X∶Eu3+,Na+(X=F,Cl)荧光粉[J].硅酸盐学报,2011,39(6):913-917.
[17]王婷,宋荷娟,黄莹,等.YPO4∶Eu微米束的尿素辅助水热合成及其发光性能[J].化学研究,2011,22(6):73-75.