Growth of polycrystalline hydroxyapatite thin films by pulsed laser deposition and subsequent heat treatment in air

V. D. Nelea; Cornel Ghica; C. Martin; Alexandru Hening; Ion N. Mihailescu; Leona C. Nistor; Valentin S. Teodorescu; Rodica Alexandrescu; J. Werckmann; Eniko Gyorgy; Gheorghe Marin

doi:10.1117/12.312755

2 July 1998 Growth of polycrystalline hydroxyapatite thin films by pulsed laser deposition and subsequent heat treatment in air

V. D. Nelea, Cornel Ghica, C. Martin, Alexandru Hening, Ion N. Mihailescu, Leona C. Nistor, Valentin S. Teodorescu, Rodica Alexandrescu, J. Werckmann, Eniko Gyorgy, Gheorghe Marin

Author Affiliations +

Proceedings Volume 3405, ROMOPTO '97: Fifth Conference on Optics; (1998) https://doi.org/10.1117/12.312755
Event: ROMOPTO '97: Fifth Conference on Optics, 1997, Bucharest, Romania

Abstract

Hydroxyapatite (HA), Ca₁₀(PO₄)₆(OH)₂, is the primary constituent of the human bone and one of the best biocompatible materials. In this work we developed a simple method for the deposition of polycrystalline HA thin films onto various collectors including substrates of medical interest (e.g. Ti). We proceeded by the pulsed laser deposition of HA targets onto parallel collectors placed at (2-5) cm in vacuum. After deposition the films were heated in air at 500 degree(s)C for 30 minutes. The heated film has a structure which appears in electron diffraction as identical to the structure of the base material. The obtained films are uniform and very adherent to the substrate. The P/Ca atomic ratio, determined by energy dispersive X-ray analysis, was found to be close to that characteristic to HA, for the post-depositing heated films.

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V. D. Nelea, Cornel Ghica, C. Martin, Alexandru Hening, Ion N. Mihailescu, Leona C. Nistor, Valentin S. Teodorescu, Rodica Alexandrescu, J. Werckmann, Eniko Gyorgy, and Gheorghe Marin "Growth of polycrystalline hydroxyapatite thin films by pulsed laser deposition and subsequent heat treatment in air", Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); https://doi.org/10.1117/12.312755

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