磁光NaFeF:Tb八面体粒子的水热合成及光学性质

Hydrothermal Synthesis and Optical Properties of Magneto-Optical NaFeF:Tb Octahedral Particles.

作者信息

Zhao Zhiguo, Li Xue

机构信息

Key Laboratory of Electromagnetic Transformation and Detection of Henan province, Luoyang Normal University, Luoyang 471934, China.

School of Materials Science and Engineering, Zhejiang Sci-Tech University, Xiasha University Town, Hangzhou 310018, China.

出版信息

Materials (Basel). 2020 Jan 10;13(2):320. doi: 10.3390/ma13020320.

DOI:10.3390/ma13020320

PMID:32284511

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7013557/

Abstract

Sodium iron hexafluoride (NaFeF), as a colorless iron fluoride, is expected to be an ideal host for rare earth ions to realize magneto-optical bi-functionality. Herein, monodispersed terbium ions (Tb) doped NaFeF particles are successfully synthesized by a facile one-pot hydrothermal process. X-ray diffraction (XRD) and Field emission scanning electron microscopy (FESEM) reveal that the Tb doped NaFeF micro-particles with regular octahedral shape can be assigned to a monoclinic crystal structure (space group P21/c). Under ultraviolet light excitation, the NaFeF:Tb octahedral particles given orange-red light emission originated from the D→F transitions of the Tb ions. In addition, the magnetism measurement indicates that NaFeF:Tb octahedral particles are paramagnetic with high magnetization at room temperature. Therefore, the NaFeF:Tb powders may find potential applications in the biomedical field as magnetic-optical bi-functional materials.

摘要

六氟铁酸钠（NaFeF）作为一种无色的铁氟化物，有望成为实现磁光双功能的稀土离子的理想基质。在此，通过简便的一锅水热法成功合成了单分散的铽离子（Tb）掺杂的NaFeF颗粒。X射线衍射（XRD）和场发射扫描电子显微镜（FESEM）表明，具有规则八面体形状的Tb掺杂NaFeF微粒属于单斜晶体结构（空间群P21/c）。在紫外光激发下，NaFeF:Tb八面体颗粒发出源于Tb离子D→F跃迁的橙红色光。此外，磁性测量表明，NaFeF:Tb八面体颗粒在室温下是具有高磁化强度的顺磁性物质。因此，NaFeF:Tb粉末作为磁光双功能材料在生物医学领域可能具有潜在应用。