title: Electronic states spectroscopy of hydroxyapatite ceramics.
abstract: Photoluminescence, surface photovoltage spectroscopy and high-resolution characterization methods (Atomic Force Microscopy, Scanning Electron Microscopy, X-ray spectroscopy and DC conductivity) are applied to nanostructured Hydroxyapatite (HAp) bioceramics and allowed to study electron (hole) energy states spectra of the HAp and distinguish bulk and surface localized levels. The measured trap spectra show strong sensitivity to preliminary heat treatment of the ceramics. It is assumed that found deep electron (hole) charged states are responsible for high bioactivity of the HAp nanoceramics.
authors.affiliation: School of Electrical Engineering-Physical Electronics, Tel Aviv University, Tel Aviv, Israel.
authors.forename: Daniel
authors.initials: D
authors.lastname: Aronov
authors.forename: Marina
authors.initials: M
authors.lastname: Chaikina
authors.forename: Jehuda
authors.initials: J
authors.lastname: Haddad
authors.forename: Anatoly
authors.initials: A
authors.lastname: Karlov
authors.forename: Gundars
authors.initials: G
authors.lastname: Mezinskis
authors.forename: Leonid
authors.initials: L
authors.lastname: Oster
authors.forename: Ilona
authors.initials: I
authors.lastname: Pavlovska
authors.forename: Gil
authors.initials: G
authors.lastname: Rosenman
mesh_terms: D001672:Biocompatible Materials / Q000737:chemistry*; D002516:Ceramics / Q000737:chemistry*; D017886:Durapatite / Q000737:chemistry*; D004563:Electrochemistry; D066298:In Vitro Techniques; D008422:Materials Testing; D018625:Microscopy, Atomic Force; D049329:Nanostructures / Q000737:chemistry; D013057:Spectrum Analysis; D014965:X-Rays
chemical_list: D001672:Biocompatible Materials; D017886:Durapatite