Název: Characterization of the Nanostructured Nickel Oxide Layers Prepared by Ion Beam Sputtering
Autoři: Horák, Pavel ; Bejšovec, Václav ; Lavrentiev, Vasyl ; Khun, J. ; Vrňata, M.
Typ dokumentu: Příspěvky z konference
Konference/Akce: 3rd International Conference on NANOCON, Brno (CZ), 2011-09-21 / 2011-09-23
Rok: 2011
Jazyk: eng
Abstrakt: Nanostructured nickel oxide layers (thickness cca 100 nm) were prepared by bombardment of nickel foil with ion beam created from a mixture of argon and oxygen. Different volume ratios of argon:oxygen mixture were used, ranging from 4:1 to 1:3. Composition of the resulting layers was analyzed by RBS, morphology by AFM and main crystal orientation of the sample by XRD. The electrophysical properties (resistivity, concentration of charge carriers) were measured by four point Van der Pauw technique and Hall measurement respectively. Prepared samples were characterized in as-deposited state and after annealing with varying temperature of treatment. Chemical composition (i.e. stoichiometry) of the as-deposited samples with different argon: oxygen ratio was related to their electrophysical parameters. Hall measurements are showing majority charge carriers to be electrons - surface concentration (0.5 - 2.3) x 10(21) m(-2) - suggesting prevailing metallic conductivity. Resistivity of the sample is increasing with higher amount of oxygen in gas mixture. The as-deposited layer is almost amorphous with no visible grains on AFM.
Klíčová slova: Ion Beam Sputtering; Nickel oxide; Van der Pauw
Číslo projektu: GAP108/11/1298 (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: NANOCON 2011, Conference Proceedings, 3 rd International Conference, ISBN 978-80-87294-27-7

Instituce: Ústav jaderné fyziky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný na externích webových stránkách.
Externí umístění souboru: http://www.nanocon.eu/files/proceedings/nanocon_11/lists/papers/1096.pdf
Původní záznam: http://hdl.handle.net/11104/0239799

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-177667


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav jaderné fyziky
Konferenční materiály > Příspěvky z konference