Characterization of hydroxyapatite by time-resolved luminescence and FTIR spectroscopy

International Conference on Functional Materials and Nanotechnologies 2013

材料科学;物理学

Grigorjeva, L.^1 ; Millers, D.^1 ; Smits, K.^1 ; Jankovica, Dz.^1 ; Pukina, L.^1

Institute of Solid State Physics, University of Latvia, Riga, Latvia^1

关键词: Decay kinetics;    Decay time;    FTIR spectroscopy;    Luminescence band;    Luminescence decay kinetics;    Luminescence spectrum;    Nano powders;    Time-resolved luminescence;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/49/1/012005/pdf
DOI  :  10.1088/1757-899X/49/1/012005

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Time-resolved luminescence and FTIR absorption spectra of undoped and Eu and Ce doped hydroxyapatite nanocrystalline powders prepared by sol-gel method were studied. The luminescence band at 350-400 nm was detected and two decay times (11 ns and 38 ns) was determinated for Ce doped samples. The luminescence spectra and decay kinetics were analized for Eu doped nanopowders. The Eu3+ion was incorporated in different Ca sites. The process of energy transfer to Eu3+excited state (5D0) was detected from luminescence decay kinetics.