Sm3+掺杂LaOF荧光粉的制备及光学性能

doi:10.11896/cldb.22100249

材料导报

2024, Vol. 38

Issue (3): 22100249-7 https://doi.org/10.11896/cldb.22100249

无机非金属及其复合材料

Sm³⁺掺杂LaOF荧光粉的制备及光学性能

贾宇盟, 史忠祥^*, 王晶^*, 李翔

大连交通大学辽宁省无机超细粉体制备及应用重点实验室,辽宁大连 116028

Synthesis and Luminescence Properties of Sm³⁺ Doped LaOF Phosphors

JIA Yumeng, SHI Zhongxiang^*, WANG Jing^*, LI Xiang

Liaoning Key Laboratory for Fabrication and Application of Superfine Inorganic Powders, Dalian Jiaotong University, Dalian 116028, Liaoning, China

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摘要以LaOF晶体为基质,利用水热辅助固相法制备出一系列Sm³⁺掺杂LaOF荧光粉。采用 XRD、TEM、荧光光谱仪等测试手段对所制得的样品的相结构、微观形貌及光学性能进行表征。结果表明,LaOF在不同煅烧温度下会产生四方相和斜方六面体两种不同晶相。此外,由于受跃迁概率和局域对称性的影响,Sm³⁺掺杂四方相LaOF发光强度更大,其各浓度样品在405 nm光激发下,于567 nm、605 nm、651 nm和710 nm等处均出现了Sm³⁺的特征发射峰,并且随着Sm³⁺掺杂量的增加,其发光强度呈现先增大后减小的趋势,且当Sm³⁺掺杂量为3.0%(摩尔分数,下同)时,La_1-xSm_xOF样品发光强度达最大值。此外,所得样品的色纯度极高,其多个激发峰均位于商用近紫外和蓝光LED芯片的发射波长附近,可实现多种波长激发下的可见橙光发射。

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	贾宇盟
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	李翔

关键词: 水热辅助固相法稀土元素钐掺杂光学性能

Abstract: A series of Sm³⁺ doped LaOF phosphors were prepared by hydrothermal assisted solid-state method using LaOF crystal as matrix. The phase structure, microstructure and optical properties of the prepared samples were characterized by XRD, TEM and fluorescence spectrometer. The results show that at different calcination temperatures, two different crystalline phases, tetragonal and rhombohedral, are produced. Moreover, due to the transition odds and local symmetry, the Sm³⁺ doped tetragonal phase LaOF has a greater luminous intensity, and the characteristic emission peaks of Sm³⁺ appear at 567 nm, 605 nm, 651 nm and 710 nm under 405 nm excitation. With the increase of Sm³⁺ doping amount, the emission intensity of Sm³⁺ first increases and then decreases. When the doping amount of Sm³⁺ is 3.0mol%, the luminescence intensity of La_1-xSm_xOF samples reaches the maximum. In addition, the excitation purity of the obtained samples is extremely high, and many excitation peaks of the samples are located near the emission wavelength of commercial near ultraviolet and blue LED chips, which can achieve visible orange light emission under excitation of various wavelengths.

Key words: hydrothermal assisted solid phase method rare earth elements samarium doping optical property

出版日期: 2024-02-10 发布日期: 2024-02-19

ZTFLH:

TB34

基金资助: 中国石油天然气股份有限公司石油化工研究院项目(2021210207000265)

通讯作者: *史忠祥,2020年于大连交通大学获博士学位,现为大连交通大学材料科学与工程学院材料实验中心实验师。目前主要从事稀土掺杂发光材料的制备及发光性能的研究。发表论文20余篇,包括Journal of Luminescence、Journal of Materials Science Materials in Electronics、Journal of Rare Earths等。492670794@qq.com;
王晶,教授/博士,现为大连交通大学材料科学与工程学院材料科学与工程系教师。主要从事无机非金属粉体材料的研究。在Ceramics International、Journal of Alloys and Compounds、Journal of Luminescence、Journal of Rare Earths、《无机材料学报》《无机化学学报》等发表论文60余篇,出版学术专著一部。wangjing@djtu.edu.cn

作者简介: 贾宇盟,2012年6月、2016年6月分别于大连交通大学获得理学学士学位和工学硕士学位。现为大连交通大学材料科学与工程学院博士研究生,在王晶教授的指导下进行研究。目前主要研究领域为稀土掺杂发光材料的制备及发光性能。

引用本文:

贾宇盟, 史忠祥, 王晶, 李翔. Sm³⁺掺杂LaOF荧光粉的制备及光学性能[J]. 材料导报, 2024, 38(3): 22100249-7.
JIA Yumeng, SHI Zhongxiang, WANG Jing, LI Xiang. Synthesis and Luminescence Properties of Sm³⁺ Doped LaOF Phosphors. Materials Reports, 2024, 38(3): 22100249-7.

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http://www.mater-rep.com/CN/10.11896/cldb.22100249 或 http://www.mater-rep.com/CN/Y2024/V38/I3/22100249

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