Local modification of the microstructure and electrical properties of multifunctional Au-YSZ nanocomposite thin films by laser interference patterning
| العنوان: | Local modification of the microstructure and electrical properties of multifunctional Au-YSZ nanocomposite thin films by laser interference patterning |
|---|---|
| المؤلفون: | Thomas Gries, Franck Cleymand, David Horwat, Jose-Luis Endrino, Sylvie Migot, Frank Mücklich, Rodolphe Catrin, Denis Mangin, Angel R. Landa-Cánovas, Flavio Soldera |
| المساهمون: | European Commission, German Research Foundation, Ministerio de Ciencia e Innovación (España), Saarland University [Saarbrücken], Institut Jean Lamour (IJL), Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Cranfield University, Instituto de Ciencia de Materiales de Madrid (ICMM), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | Digital.CSIC. Repositorio Institucional del CSIC instname ACS Applied Materials & Interfaces ACS Applied Materials & Interfaces, Washington, D.C. : American Chemical Society, 2014, 6 (16), pp.13707-13715. ⟨10.1021/am503160w⟩ |
| سنة النشر: | 2014 |
| مصطلحات موضوعية: | Nanocomposite, Materials science, [SDV.BIO]Life Sciences [q-bio]/Biotechnology, Laser interference patterning, Annealing (metallurgy), [CHIM.ORGA]Chemical Sciences/Organic chemistry, Thermal annealing, Nanoparticle, Nanotechnology, [CHIM.MATE]Chemical Sciences/Material chemistry, Nanocomposite films, [CHIM.INOR]Chemical Sciences/Inorganic chemistry, Microstructure, Chemical engineering, Sputtering, Colloidal gold, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Electrical conductivity, Gold nanoparticles, General Materials Science, Cubic zirconia, [SDV.IB]Life Sciences [q-bio]/Bioengineering, Yttria-stabilized zirconia |
| الوصف: | Nanocomposite films consisting of gold nanoparticles embedded in an yttria-stabilized zirconia matrix (Au-YSZ) have been synthesized with different gold loadings by reactive magnetron sputtering followed by ex situ annealing in air or laser interference patterning (LIP) treatment. It is shown that the electrical conductivity of the nanocomposite films can be modified to a large extent by changing the gold loading, by thermal annealing, or by LIP. The structural and microstructural analyses evidenced the segregation of metallic gold in crystalline form for all synthesis conditions and treatments applied. Thermal annealing above 400 °C is observed to trigger the growth of pre-existing nanoparticles in the volume of the films. Moreover, pronounced segregation of gold to the film surface is observed for Au/(Au + Zr + Y) ratios above 0.40, which may prevent the use of thermal annealing to functionalize gold-rich Au-YSZ coatings. In contrast, significant modifications of the microstructure were detected within the interference spot (spot size close to 2 × 2 mm) of LIP treatments only for the regions corresponding to constructive interference. As a consequence, besides its already demonstrated ability to modify the friction behavior of Au-YSZ films, the LIP treatment enables local tailoring of their electrical resistivity. The combination of these characteristics can be of great interest for sliding electrical contacts. The authors acknowledge the German Research Foundation (DFG) for support under project MU 959/20-1 and the BV Matwerk/DFG for the research grant offered for a one-year postdoc for T.G. in Saarbrücken. F.M. and F.S. wish to acknowledge the EFRE funds of the European Commission for support of activities within the AME-Lab project. A.R.L.-C. thanks the Spanish Ministerio de Ciencia e Innovacion for financial support through Project FUNCOAT-CSD2008-00023. |
| تدمد: | 1944-8252 1944-8244 |
| DOI: | 10.1021/am503160w⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d59040531e951780308f10355fb351a https://pubmed.ncbi.nlm.nih.gov/25058913 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....0d59040531e951780308f10355fb351a |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19448252 19448244 |
|---|---|
| DOI: | 10.1021/am503160w⟩ |