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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >3Si 6O 12N 2 and Ba 3Si 6O 9N 4 and the luminescent properties Eu 2+ doped Ba 3Si 6O 9N 4]]>
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3Si 6O 12N 2 and Ba 3Si 6O 9N 4 and the luminescent properties Eu 2+ doped Ba 3Si 6O 9N 4]]>

机译:<![CDATA [BA 3 6 O 12> 12 N 2 和BA 3 6 o 9 n 4 和发光属性eu 2 + 掺杂ba 3 6 O 9 N 4 ] >

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AbstractPowder samples of Ba3Si6O12N2and Ba3Si6O9N4were synthesized by solid state reaction method at 1300–1400?°C in H2/N2(6:94) reductive atmosphere. The structural correlations between the two phases were analyzed based on X-ray diffraction data and neutron diffraction data. The results indicate that Ba3Si6O12N2can be converted into Ba3Si6O9N4when three O2?are replaced by two N3?, meanwhile, one trigeminal N(SiO3)3group of two in the unit cell is transformed into (SiO2N)3ring. The luminescent properties of Eu2+doped Ba3Si6O9N4were investigated. Ba3Si6O9N4:Eu2+gives wide excitation and emission spectra since the dopant occupy three different Ba sites. The phosphor shows green luminescence color with three emission peaks at 370?nm, 405?nm and 520?nm excited in the range of 210?nm–470?nm. Both luminescence spectra and decay curves indicate that in the Eu2+doped Ba3Si6O9N4, the energy transfer occurs from the luminescence centers for the shorter wavelength emissions (Eu1 at 370?nm and Eu2 at 405?nm) to the center for the longer wavelength emissions (Eu3 at 520?nm). The Eu2+doped sample has potential application in white LEDs.Graphical abstractDisplay OmittedHighlights?Nitrogen sites in Ba3Si6O12N2and Ba3Si6O9N4were refined from neutron data.?The structure transformation between Ba3Si6O12N2and Ba3Si
机译:<![CDATA [什么:抽象的xmlns:什么= “http://www.elsevier.com/xml/common/dtd”的xmlns = “http://www.elsevier.com/xml/ja/dtd” XML: LANG = “EN” ID = “ABS0010”查看= “全部”类= “作者”> 抽象 BA的粉末样品 3 6 0 12 名词 2 和BA 3 6 0 2 / N 2 (6:94)还原性气氛中。两两相之间的结构相关分析基于X射线Dimfraction数据和中子暗淡。结果表明,BA 3 6 0 12 名词 2 可以被转换成BA 3 和< CE:Inf文件放置= “POST”> 6 0 9 名词 4 当三个0 2 已经替换为两个n <什么?SUP LOC = “POST”> 3 ,同时,一三叉N(SIO 3 3 在单元电池的两个小组是转运到( SIO 2 N) 3 环。 Eu的发光性能<什么:辛地点= “POST”> 2 + 掺杂BA 3 6 0 9 名词 4 进行了研究。 BA 3 6 0 9 名词 4 :EU <什么:SUP PLACE = “POST”> 2 + 给出自WIDE激发和发射光谱掺杂占据三种不同巴站点。所述磷光体显示出绿色发光色具有三个Emition峰在370?NM,405?NM和520?NM兴奋210的范围内?NM-470?NM。两个发光光谱和衰减曲线表明,在欧盟<什么:燮: “后”> 2 + 掺杂BA 3 6 0 9 名词 4 ,该发生能量转移从发光中心波长较短排放(EU1在370?NM)到中心对于较长WAVELIGH排放(EU3在520?NM)。欧盟<什么:SUP PLACE = “POST”> 2 + 掺杂样品具有PUTTENTIAL应用在白光LED GRAPHICAL摘要 显示中省略 亮点 氮站点在BA 3 6 0 12 名词 2 和BA 3 6 0 9 名词 4 进行了细化从中子数据 BA 3 6 0 12 名词 2 和BA

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