Characterization of hydroxyapatite by time-resolved luminescence and FTIR spectroscopy

Characterization of hydroxyapatite by time-resolved luminescence and FTIR spectroscopy

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 lumi...

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Veröffentlicht in:IOP conference series. Materials Science and Engineering 2013-01, Vol.49 (1), p.12005-4
Hauptverfasser: Grigorjeva, L, Millers, D, Smits, K, Jankovica, Dz, Pukina, L
Format: Artikel
Sprache:eng
Schlagworte:
Absorption spectra
Cerium
Crystals
Decay
Energy transfer
Europium
Fourier transforms
Hydroxyapatite
Infrared spectroscopy
Kinetics
Luminescence
Nanocrystals
Sol-gel processes
Spectra
Spectrum analysis
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Beschreibung
Zusammenfassung: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.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/49/1/012005