Electrical and structural characterisation of nanostructured titania coatings deposited on interdigitated electrode system(Article)
- aDepartment of Materials Engineering, Faculty of Technology, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia
- bDepartment of Power, Electronics and Telecommunications Engineering, Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia
Abstract
This paper presents the electrical properties of La- and Nb-doped nanostructured titanium dioxide (TiO2) thin coatings deposited on the alumina substrate with gold electrodes in the interdigitated form to obtain appropriate devices for sensor application. Electrical parameters such as conductivity σ and permittivity ε were calculated using measured values of phase angle θm, capacitance Cm and resistance Rm. These values were measured using an HP-4194A Impedance/Gain-Phase Analyzer with a Z-probe in the frequency range from 10 3 Hz to 108 Hz. The measured results showed that with addition of 2, 4 or 6 at% of lanthanum, conductivity and permittivity of analysed samples are decreasing, whereas the addition of niobium in the same percentage follows the opposite trend. © 2011 Elsevier B.V. All rights reserved.
Indexed keywords
| Engineering uncontrolled terms | A. NanostructuresAlumina substratesB. CoatingsB. Sol-gel growthCharacterisationElectrical parameterElectrical propertyFrequency rangesGold electrodesInter-digitated electrodesMeasured resultsNanostructured titaniaNanostructured titaniumPhase anglesSensor applicationsThin coatingTiO |
|---|---|
| Engineering controlled terms: | CoatingsGold coatingsNanostructuresNiobiumPermittivityTitaniumTitanium dioxideTitanium plating |
| Engineering main heading: | Electric properties |
Funding details
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1
Authors would like to acknowledge the support from the Serbian Ministry of Science, Project “Synthesis of nanopowders and processing of ceramics and nanocomposites with specific electric and magnetic properties for application in integrated passive components”, No. III45021.
- ISSN: 02540584
- CODEN: MCHPD
- Source Type: Journal
- Original language: English
- DOI: 10.1016/j.matchemphys.2011.07.061
- Document Type: Article
Milanović, M.; Department of Materials Engineering, Faculty of Technology, University of Novi Sad, Bulevar Cara Lazara 1, Serbia;
© Copyright 2011 Elsevier B.V., All rights reserved.
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