电纺制备LaOCl:Eu~(3+),Ce~(4+)纳米纤维及其荧光性能研究
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- 英文论文题名：Electrospun LaOCI:Eu~(3+),Ce~(4+) Nanofibers with Fluorescence Properties
- 论文作者：许玉羡 ; 王心怡 ; 左佳昌 ; 李卓 ; 刘欣萍 ; 罗永晋 ; 钱庆荣 ; 陈庆华
- 英文论文作者：Yuxian Xu ; Xinyi Wang ; Jiachang Zuo ; Zhuo Li ; Xinping Liu ; Yongjin Luo ; Qingrong Qian ; Qinghua Chen ; College of Environmental Science and Engineering ; Fujian Normal University
- 年：2016
- 作者机构：福建师范大学环境科学与工程学院;
- 论文关键词：静电纺丝 ; LaOCl ; Eu~(3+) ; Ce~(4+) ; 圆片 ; 荧光
- 英文论文关键词：electrospinning ; LaOCl ; Eu~(3+) ; Ce~(4+) ; wafer nanograins ; lumneshacence
- 会议召开时间：2016-11-18
- 会议录名称：中国第四届静电纺丝大会（CICE 2016）摘要集
- 语种：中文
- 分类号：TQ340.64
- 学会代码：ZGNM
- 会议名称：中国第四届静电纺丝大会(CICE 2016)
- 会议地点：中国北京
- 主办单位：中国复合材料学会超细纤维材料分会（筹）
- 学会名称：中关村科创纳米技术创新研究会
- 页数：1
- 文件大小：784k
- 原文格式：D
- 会议级别：全国
摘要
稀土氯氧化镧作为一种重要的发光基质,具有较高的光吸收和传导效率,己成为发光材料领域的研究热点之一[1]。目前研究者通过各种技术己成功制备了多种形貌的稀土氯氧化物微纳米材料[2]。静电纺丝法制备的无机纳米纤维具有较大的比表面积及较强的表面活性,在发光材料的应用中表现出优势。本文以聚乙烯醇为模板剂,采用静电纺丝结合高温煅烧技术制备了LaOCl:Eu~(3+),Ce~(4+)纳米纤维。SEM图像表明,静电纺丝法制备出的EuCl_3/CeCl_3/LaCl_3/PVA复合纳米纤维表面光滑,经750℃煅烧4 h后获得近圆片串联堆积而成的LaOCl:Eu~(3+)、Ce~(3+)荧光纳米纤维。研究发现,通过调整Eu~(3+)、Ce~(4+)离子的共掺杂比例,可以使样品的发光颜色实现可调性,在LED领域有着广阔的应用前景。
Lanthanum oxychloride(LaOCl),a promising host material,has received considerable attention owing to its high efficiency of light absorption and conduction.Various methods have been used to prepare rare earth doped luminescent materials with different morphologies.Inorganic nanofibers fabricated via electrospinning show relatively large surface area,strong surface reactivity and thus possess advantage in the application of luminescence.The color-tunable fluorescentLaOCl:Eu~(3+),Ce~(4+) nanofibers were successfully fabricated via an electrospinning combined with calcination route,in which PVA was employed as a template.Scanning electron microscopy(SEM) analysis indicates that LaOCl:Eu~(3+),Ce~(4+) nanofibers calcined at 750 ℃ for 4 h are composed of wafer nanograins.CIE chromaticity coordinates analysis demonstrates that the fluorescence color of LaOCl:Eu~(3+),Ce~(4+) nanofibers can be tuned by simply adjusting the Eu/Ce ratio,being a promising candidate for application in LEDs.
Lanthanum oxychloride(LaOCl),a promising host material,has received considerable attention owing to its high efficiency of light absorption and conduction.Various methods have been used to prepare rare earth doped luminescent materials with different morphologies.Inorganic nanofibers fabricated via electrospinning show relatively large surface area,strong surface reactivity and thus possess advantage in the application of luminescence.The color-tunable fluorescentLaOCl:Eu~(3+),Ce~(4+) nanofibers were successfully fabricated via an electrospinning combined with calcination route,in which PVA was employed as a template.Scanning electron microscopy(SEM) analysis indicates that LaOCl:Eu~(3+),Ce~(4+) nanofibers calcined at 750 ℃ for 4 h are composed of wafer nanograins.CIE chromaticity coordinates analysis demonstrates that the fluorescence color of LaOCl:Eu~(3+),Ce~(4+) nanofibers can be tuned by simply adjusting the Eu/Ce ratio,being a promising candidate for application in LEDs.
引文
[1]Kong,Q.;Wang,J.;Dong,X.;et al.Mater.Sci:Mater Electron 2013,24:4745-4756.
[2]Li,X.;Chen,Y.;Qian,Q.;et al.J.Lumin 2012,132(1):81-85.
[2]Li,X.;Chen,Y.;Qian,Q.;et al.J.Lumin 2012,132(1):81-85.