Exoemission analysis of energy levels in the surface layer of biocompatible Ca-10(PO4)(6)(OH)(2)

Authors
Zakharov, NA Orlovskii, VP Klyuev, VA Toporov, YP
Citation
Na. Zakharov et al., Exoemission analysis of energy levels in the surface layer of biocompatible Ca-10(PO4)(6)(OH)(2), INORG MATER, 37(8), 2001, pp. 863-867
Citations number
27
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
INORGANIC MATERIALS
ISSN journal
00201685 → ACNP
Volume
37
Issue
8
Year of publication
2001
Pages
863 - 867
Database
ISI
SICI code
0020-1685(200108)37:8<863:EAOELI>2.0.ZU;2-H
Abstract
Thermostimulated exoelectron emission from sintered hydroxyapatite (HAP), C a-10(PO4)(6)(OH)(2), prepared by the alkoxy method was studied in the tempe rature range 300-800 K. The results were used to determine trap depths, the frequency factor in the Boltzmann probability of thermal release, lifetime of conduction-band electrons, and charge density at active centers in the surface layer of the material. The exoelectron emission data are correlated with earlier thermostimulated current measurements and structural studies of phase transitions in HAP. Possible lines of further research are discuss ed.