全文下载:
202603006.pdf
文章编号:1672-6987(2026)03-0049-07;DOI:10. 16351/j. 1672-6987. 2026. 03. 006
徐仕成 1,2†,贺翠萍 1†,李祝萱 1 ,孙雨晴 1 ,刘 杰 1* ,张育宁 1 ,曹景行 1 ,孙己鑫 1 , 刘冬昊 1 ,刘泮芝 1 ,李嘉豪 1 ,吴占超 1* (1. 青岛科技大学 化学与分子工程学院,山东 青岛 266042; 2. 临沂大学 材料科学与工程学院,山东 临沂 276000)
摘 要:采用高温固相法在 900 ℃合成了 Ba2. 991-3xP4O13:0. 009Eu2+ ,3xSr2+ (x = 0~0. 25)系 列荧光粉,并通过 X 射线衍射(XRD)、扫描电子显微镜(SEM)及能量色散 X 射线光谱(EDS) 对其晶体结构、微观形貌和元素分布进行了表征;研究了该荧光粉的激发和发射光谱,并利用 国际照明委员会(CIE)色度坐标图对其发光颜色进行了研究。结果表明,Sr2+ 取代 Ba2+ 并未 产生明显的杂质相,其在基质中占据的是 Ba2+ 的晶格位点。在近紫外激发(350 nm)条件下, 当 x 从 0. 00 增加到 0. 01时,发射光谱的主发射峰由 548 nm 突变至 450 nm 左右。这一现象归 因于 Sr2+的掺杂导致 Ba3P4O13基质晶格由高温相转变为低温相,改变了 Eu2+周围的晶体场环 境。随着 Sr2+掺杂浓度的增加,样品发射光谱的 CIE 色坐标也由黄光区移向蓝光区。综上所 述,通过 Sr2+的掺杂成功实现了该荧光粉基质由高温相向低温相转变,实现了对该荧光粉发射 光谱和发光颜色的调控。因此,该策略在荧光粉的光谱调控中具有重要的应用前景。
关键词:荧光粉;磷酸盐;光谱调控;晶相转变
中图分类号:O 61 文献标志码:A
引用格式:徐仕成,贺翠萍,李祝萱,等 . Sr2+掺杂诱导 Ba3P4O13:Eu2+荧光粉晶相转变及光谱 调控[J]. 青岛科技大学学报(自然科学版),2026,47(3):49-55.
XU Shicheng, HE Cuiping, LI Zhuxuan, et al. Sr2+ ion induced crystal phase transition and luminescence tuning of Ba3P4O13:Eu2+ phosphor[J]. Journal of Qingdao University of Science and Technology(Natural Science Edition),2026,47(3):49-55.
Sr2+ Ion Induced Crystal Phase Transition and Luminescence Tuning of Ba3P4O13:Eu2+ Phosphor
XU Shicheng1,2 ,HE Cuiping1 ,LI Zhuxuan1 ,SUN Yuqing1 ,LIU Jie1 ,ZHANG Yuning1 ,CAO Jingxing1 , SUN Jixin1 ,LIU Donghao1 ,LIU Panzhi1 ,LI KA HO1 ,WU Zhanchao1 (1. College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042,China;2. School of Materials Science and Engineering, Linyi University, Linyi 276000, China)
Abstract:The series of Ba2. 991-3xP4O13:0. 009Eu2+ ,3xSr2+ (x = 0—0. 25)phosphors were synthesized via a high-temperature solid-state method at 900 ℃. Their crystal structures, mor⁃ phologies, and elemental distributions were characterized using X-ray diffraction (XRD), scan⁃ning electron microscopy (SEM),and energy-dispersive X-ray spectroscopy (EDS). The excitation and emission spectra of the phosphors were investigated, and the Commission Inter⁃ nationale de l'Éclairage (CIE) chromaticity coordinates were employed to analyze the lumines⁃ cence colors. Results show that Sr2+ substitution for Ba2+ did not introduce detectable impurity phases and that Sr2+ ions occupy the Ba2+ lattice sites within the host. Under near-UV excita⁃ tion at 350 nm,as x increases from 0. 00 to 0. 01, the main emission peak shifts from 548 nm to approximately 450 nm. This shift is attributed to the phase transition of the Ba3P4O13 host from a high-temperature phase to a low-temperature phase induced by Sr2+ doping, which alters the crystal field environment around Eu2+ ions. With increasing Sr2+ concentration, the CIE chromaticity coordinates of the samples shift from the yellow-light region toward the bluelight region. In conclusion, Sr2+ doping successfully induces a phase transition from the hightemperature to the low-temperature phase in the phosphor host,enabling effective tuning of the emission spectrum and luminescence color. Therefore, this strategy holds significant potential for spectral regulation in phosphor materials.
Key words:phosphor; phosphate;luminescence tuning; crystal phase transition
收稿日期:2025-06-02
基金项目:山东省自然科学基金项目(ZR2022ME 113).
作者简介:徐仕成(1993—),男,讲师 . †共同第一作者 . * 通信联系人.