Počet záznamů: 1  

PLD prepared bioactive BaTiO.sub.3./sub. films on TiNb implants

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    0473792 - FZÚ 2018 RIV CH eng J - Článek v odborném periodiku
    Jelínek, Miroslav - Vaněk, Přemysl - Tolde, Z. - Buixaderas, Elena - Kocourek, Tomáš - Studnička, Václav - Drahokoupil, Jan - Petzelt, Jan - Remsa, Jan - Tyunina, Marina
    PLD prepared bioactive BaTiO3 films on TiNb implants.
    Materials Science & Engineering C-Materials for Biological Applications. Roč. 70, Jan (2017), s. 334-339. ISSN 0928-4931. E-ISSN 1873-0191
    Grant CEP: GA ČR(CZ) GA15-05864S; GA ČR(CZ) GA15-01558S
    Institucionální podpora: RVO:68378271
    Klíčová slova: BaTiO3 * thin films * pld * implants * TiNb * ferroelectricity
    Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
    Impakt faktor: 5.080, rok: 2017

    BaTiO3 (BTO) layers were deposited by pulsed laser deposition (PLD) on TiNb, Pt/TiNb, Si (100), andfused silica substrates using various deposition conditions. Polycrystalline BTO with sizes of crystallites in the range from 90 nm to 160 nm was obtained at elevated substrate temperatures of (600 degrees C-700 degrees C). With increasing deposition temperature above 700 degrees C the formation of unwanted rutile phase prevented the growth of perovskite ferroelectric BTO. Concurrently, with decreasing substrate temperature below 500 C, amorphous films were fornied. Post-deposition annealing of the amorphous deposits allowed obtaining perovskite BTO. Using a very thin Pt interlayer between the BTO films and TiNb substrate enabled high-temperature growth of preferentially oriented BTO. Raman spectroscopy and electrical characterization indicated polar ferroelectric behaviour of the BTO films.
    Trvalý link: http://hdl.handle.net/11104/0270930

     
     
Počet záznamů: 1  

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