Characterization of hydroxyapatite by time-resolved luminescence and FTIR spectroscopy

L.Grigorjeva, D.Millers, K.Smits, Dz.Jankovica, L.Pukina

Abstract. 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.

IOP Conference Series: Materials Science and Engineering 49 (2013) 012005


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