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首页> 外文期刊>Solid state sciences >3Bi2(BO3)4:Eu3+ red phosphor: Synthesis, crystal structure, luminescent and thermal properties]]>
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3Bi2(BO3)4:Eu3+ red phosphor: Synthesis, crystal structure, luminescent and thermal properties]]>

机译:<![cdata [cdata [cdel 3 bi 2 (bo 3 4 :eu 3 + 红色Phoshor:合成,晶体结构,发光和热性能]]]>

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摘要

Abstract Novel compound, Sr3Bi2(BO3)4, and Sr3Bi2(BO3)4:Eu3+ series were firstly synthesized by crystallization from a melt. The crystal structures of Sr3Bi2(BO3)4 and Sr3Bi1.66Eu0.34(BO3)4 borates were refined from single crystal X-ray diffraction data to R 1?=?0.051 and 0.067, respectively. Sr3Bi2(BO3)4 borate crystallizes in the orthorhombic space group Pnma, a?=?7.5107 (5), b?=?16.2737 (11), c?=?8.8163 (5) ?, V?=?1077.59 (12) ?3, Z?=?4. These compounds are isotypical to those of A 3 REE 2(BO3)4 family, A?=?Ca, Sr, Ba. Crystal structure consists of isolated BO3 triangles and three independent M1O8, M2O8 and M3O8 polyhedra, which are connected by corners and edges forming the framework. The distribution of Sr and Bi atoms is partially disordered over M1-M3 positions. Thermal transformations of Sr3Bi2(BO3)4:Eu3+ series were studied by DSC and TG, powder HTXRD, thermal expansion of Sr3Bi2(BO3)4 borate was investigated by powder HTXRD. The emission spectra of Sr3Bi2(BO3)4:Eu3+ show characteristic lines attributed to the intra-configurational 4f-4f transitions in Eu3+ ions. Sr3(Bi0.85Eu0.15)2(BO3)4:Eu3+ demonstrates the strongest luminescent intensity among studied in this work borates. It can be concluded that Sr3Bi2(BO3)4:Eu3+ is a promising red phosphor. Graphical abstract
机译:<![CDATA [<抽象的xmlns:什么= “http://www.elsevier.com/xml/common/dtd”的xmlns = “http://www.elsevier.com/xml/ja/dtd” XML:郎= “EN” ID = “abs0010”视图= “所有”类= “作者”> <什么:节的标题ID = “sectitle0010”>抽象 <抽象,SEQ ID =“ abssec0010"视图= “所有”> <如:单p ID = “abspara0010”视图= “所有”>新型化合物,锶<如:INF地方= “POST”> 3 双<在于: INF代替= “POST”> 2 (BO <即:INF代替= “POST”> 3 )<为:INF代替= “POST”> 4 和Sr <在于:INF代替= “POST”> 3 双<在于:INF代替= “POST”> 2 (BO <即:INF代替=“后“> 3 )<为:INF代替= “POST ”> 4 :我<为:SUP代替=“ POST”> 3 + 系列分别首先通过合成结晶从熔体。 3 双<在于:INF代替= “POST”> 2 (BO <即:INF代替=“POST:锶的晶体结构“> 3 )<为:INF代替=” POST “> 4 和Sr <在于:INF代替=” POST“> 3 双<在于: INF地方= “POST”> 1.66 我<为:INF地方= “POST”> 0.34 (BO <为:INF地方= “POST”> 3 )<为:INF代替= “POST”> 4 硼酸盐是从单晶X射线衍射日期细化到<斜体> - [R <在于:INF代替=“后” > 1 = 0.051和0.067,分别?。 SR <在于:INF代替= “POST”> 3 双<在于:INF代替= “POST”> 2 (BO <即:INF代替= “POST”> 3 < /为什么:INF>)<为:INF地方= “POST”> 4 硼酸盐结晶的斜方晶系空间群<斜体>晶Pnma ,<斜体>一 = 7.5107(5)<斜体> b'/斜体> = 16.2737(11)<斜体> C = 8.8163(5)<斜体> V = 1077.59(12)???<为:SUP代替= “POST”> 3 ,<斜体>ž = 4?。编织化合物具有isotypical那些<斜体> A 的<即:INF代替= “POST”> 3 <什么斜体> REE <你:INF代替= “后”> 2 (BO <即:INF代替= “POST”> 3 )<为:INF代替= “POST”> 4 家族<斜体> A =?钙,锶,钡。晶体结构由分离BO的<在于:INF代替= “POST”> 3 三角形和三个独立的<斜体>中号 1O <在于:INF代替= “POST”> 8 < / EC:INF>,<斜体>中号 N2 <在于:INF代替= “POST”> 8 和<斜体>中号 30 <如:INF地方=“POST”> 8 多面体,其通过角部和边缘而形成的框架相连接。 Sr和Bi的原子数部分的分布无序过<斜体>中号 1 <斜体>中号 3个位置。的热转换SR <在于:INF代替= “POST”> 3 双<在于:INF代替= “POST”> 2 (BO <即:INF代替= “POST” > 3 )<为:INF地方= “POST”> 4 :我<为:SUP地方= “POST”> 3 + 系列均经研究DSC和TG,粉末HTXRD,锶<在于:INF代替= “POST”>热膨胀3 双<在于:INF代替= “POST”> 2 (BO <你:代替INF = “POST”> 3 )<为:业务INF = “POST”> 4 通过粉末HTXRD硼酸盐研究。 3 双<在于:INF代替= “POST”> 2 (BO <即:INF代替=“POST:锶的发射光谱“> 3 )<为:INF代替=” POST “> 4 :我<为:SUP代替=” POST“> 3 + 显示特性线归因于帧内构4F-4F跃迁在铕<在于:SUP地方= “POST”> 3 + 离子。 SR <为:INF地方= “POST”> 3 的(Bi <为:INF地方= “POST”> 0.85 我<为:INF地方= “POST”> 0.15 < /在于:INF>)<为:INF代替= “POST”> 2 (BO <即:INF代替= “POST”> 3 )<为:INF代替='交 “> 4 :我<为:SUP代替=” POST“> 3 + 演示发光中具有最强强度在这项工作中硼酸盐的研究。它可以得出结论,SR <在于:INF代替= “POST”> 3 双<在于:INF代替= “POST”> 2 (BO <即:INF代替='交 “> 3 )<为:INF代替=” POST “> 4 :我<为:SUP代替=” POST“> 3 + 是。有为红色荧光体 <如:抽象的xmlns:什么= “http://www.elsevier.com/xml/common/dtd”的xmlns = “http://www.elsevier.com/xml/ja/dtd ”类=“ 图形 ”ID =“ abs0015 ”视图=“ 所有 ”> <什么:节的标题ID =“ sectitle0015”>抽象图形 <你抽象仲丁基ID =“abssec00

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