NDLI: Comparison of the influence of titanium and chromium adhesion layers on the properties of sol

Content Provider	Springer Nature Link
Author	Wiegand, Sebastian Flege, Stefan Ensinger, Wolfgang
Copyright Year	2013
Abstract	Lead-free (Na$_{0.5}$K$_{0.5}$)NbO$_{3}$ (NKN) thin films were prepared on Pt/X/SiO$_{2}$/Si substrates (with the adhesion promoters X = Ti, Cr) by a sol–gel process with and without post-annealing treatment. The effect of the diffusion of the adhesion layer elements Ti and Cr into the NKN film was analysed by secondary ion mass spectrometry, scanning electron microscopy pictures, X-ray diffraction (XRD), and leakage current measurements. It turned out that Cr diffuses into the films to a higher extent than Ti. The high amount of Cr diffusion led to the formation of a secondary phase, as seen in the XRD pattern, and to pore formation on the surface of the NKN films. In contrast, the films with Ti adhesion layer were single phase NKN without pore formation. Also, the leakage current measurements showed a strong influence of the Cr diffusion. The leakage current of the films with Cr adhesion layer was about four orders of magnitude higher than that of the films with Ti adhesion layer. The study shows the strong influence of the adhesion layer of the substrate on the properties of NKN films.
Starting Page	654
Ending Page	659
Page Count	6
File Format	PDF
ISSN	09280707
Journal	Journal of Sol-Gel Science and Technology
Volume Number	67
Issue Number	3
e-ISSN	15734846
Language	English
Publisher	Springer US
Publisher Date	2013-07-27
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sol–gel process (Na$_{0.5}$K$_{0.5}$)NbO$_{3}$ Thin film Diffusion Substrate Lead-free piezo material Ceramics, Glass, Composites, Natural Methods Inorganic Chemistry Optical and Electronic Materials Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Chemistry Materials Chemistry Biomaterials Condensed Matter Physics Electronic, Optical and Magnetic Materials

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