Hydrothermal BaTiO3 thin films from nanostructured Ti templates
Polycrystalline BaTiO3 thin films have been prepared by hydrothermal reaction with sputter-deposited nanostructured reactive Ti templates designed to control net diffusion direction and distance. Templates were prepared in two morphologies, i.e., planar and nanopillar. The samples produced from flat...
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| Veröffentlicht in: | Journal of materials research 2011-02, Vol.26 (4), p.592-599 |
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| creator | Akyıldız, Hasan Casper, Michelle D. Aygün, Seymen M. Lam, Peter G. Maria, Jon P. |
| description | Polycrystalline BaTiO3 thin films have been prepared by hydrothermal reaction with sputter-deposited nanostructured reactive Ti templates designed to control net diffusion direction and distance. Templates were prepared in two morphologies, i.e., planar and nanopillar. The samples produced from flat templates showed sluggish transformation kinetics and an eventual termination of reaction without fully consuming the Ti metal. Templates with pillar morphology, on the other hand, could be transformed to phase-pure BaTiO3, independent of the template thickness. In the as-precipitated state, those films revealed a permittivity of ~1000 and loss tangent values around 0.1 with mild dispersion in the kilohertz frequency range. Annealing these films under forming gas containing 1 vol% H2 balance N2 for 3 h at 200 °C decreased high-field losses to 0.06 and reduced dispersion. Mn incorporation as an in situ acceptor dopant was also explored. Addition of Mn during hydrothermal treatment further improved the electrical properties. Annealing under the same postgrowth conditions virtually eliminated the frequency dispersion in the range of 1 kHz to 1 MHz, while maintaining permittivity values in the range of 350. |
| doi_str_mv | 10.1557/jmr.2010.102 |
| format | Article |
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Annealing under the same postgrowth conditions virtually eliminated the frequency dispersion in the range of 1 kHz to 1 MHz, while maintaining permittivity values in the range of 350.</description><subject>Applied and Technical Physics</subject><subject>Biomaterials</subject><subject>Dielectric properties</subject><subject>Inorganic Chemistry</subject><subject>Materials Engineering</subject><subject>Materials research</subject><subject>Materials Science</subject><subject>Nanotechnology</subject><subject>Organic chemicals</subject><subject>Scanning electron microscopy</subject><subject>Temperature</subject><subject>Thin films</subject><subject>X-rays</subject><issn>0884-2914</issn><issn>2044-5326</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqFkE1LAzEQhoMoWKs3f0DwvnUym2yTk2hRKxR6qecl2STtlv0yyR78926p4NHTMMMz7wsPIfcMFkyI5eOxDQuE0wZ4QWYInGcix-KSzEBKnqFi_JrcxHgEYAKWfEae1t829OngQqsb-qJ39Tan6VB31NdNG6kPfUs73fUxhbFKY3CW7mqaXDs0Orl4S668bqK7-51z8vn2uluts832_WP1vMkqFCplRqFGYx2TlhdCO6HRF8hBWFMoL41H5zU31RJUzkDJCoSUhnHL0RsEk8_Jwzl3CP3X6GIqj_0YuqmyVCALxvNCTVB2huIQ6m7vwh_EoDwpKidF5UnRdMCJX5z5Srcm1Hbv_nn4ASjGaKs</recordid><startdate>20110228</startdate><enddate>20110228</enddate><creator>Akyıldız, Hasan</creator><creator>Casper, Michelle D.</creator><creator>Aygün, Seymen M.</creator><creator>Lam, Peter G.</creator><creator>Maria, Jon P.</creator><general>Cambridge University Press</general><general>Springer International Publishing</general><general>Springer Nature B.V</general><scope>0U~</scope><scope>1-H</scope><scope>3V.</scope><scope>7SR</scope><scope>7WY</scope><scope>7WZ</scope><scope>7XB</scope><scope>87Z</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8FL</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BEZIV</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FRNLG</scope><scope>F~G</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>K60</scope><scope>K6~</scope><scope>KB.</scope><scope>L.-</scope><scope>L.0</scope><scope>M0C</scope><scope>PDBOC</scope><scope>PQBIZ</scope><scope>PQBZA</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>S0W</scope></search><sort><creationdate>20110228</creationdate><title>Hydrothermal BaTiO3 thin films from nanostructured Ti templates</title><author>Akyıldız, Hasan ; 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Templates were prepared in two morphologies, i.e., planar and nanopillar. The samples produced from flat templates showed sluggish transformation kinetics and an eventual termination of reaction without fully consuming the Ti metal. Templates with pillar morphology, on the other hand, could be transformed to phase-pure BaTiO3, independent of the template thickness. In the as-precipitated state, those films revealed a permittivity of ~1000 and loss tangent values around 0.1 with mild dispersion in the kilohertz frequency range. Annealing these films under forming gas containing 1 vol% H2 balance N2 for 3 h at 200 °C decreased high-field losses to 0.06 and reduced dispersion. Mn incorporation as an in situ acceptor dopant was also explored. Addition of Mn during hydrothermal treatment further improved the electrical properties. Annealing under the same postgrowth conditions virtually eliminated the frequency dispersion in the range of 1 kHz to 1 MHz, while maintaining permittivity values in the range of 350.</abstract><cop>New York, USA</cop><pub>Cambridge University Press</pub><doi>10.1557/jmr.2010.102</doi><tpages>8</tpages></addata></record> |
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| subjects | Applied and Technical Physics Biomaterials Dielectric properties Inorganic Chemistry Materials Engineering Materials research Materials Science Nanotechnology Organic chemicals Scanning electron microscopy Temperature Thin films X-rays |
| title | Hydrothermal BaTiO3 thin films from nanostructured Ti templates |
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