STRUCTURAL AND MAGNETIC PROPERTIES OF FE-OXIDE LAYERS PREPARED BY INKJET PRINTING ON SI-SUBSTRATE

1,2 ZAZIMAL Frantisek
Co-authors:
3 SVOBODA Tomas 3 DZIK Petr 1 HOMOLA Tomas 2 JIRASKOVA Yvonna
Institutions:
1 Department of Physical Electronics, Faculty of Science, Masaryk University, Brno, Czech Republic, EU, zazimal@ipm.cz
2 Institute of Physics of Materials, AS CR, Brno, Czech Republic, EU, jirasko@ipm.cz
3 Brno University of Technology, Faculty of Chemistry, Brno, Czech Republic, EU
Conference:
12th International Conference on Nanomaterials - Research & Application, Brno, Czech Republic, EU, October 21 - 23, 2020
Proceedings:
Proceedings 12th International Conference on Nanomaterials - Research & Application
Pages:
24-29
ISBN:
978-80-87294-98-7
ISSN:
2694-930X
Published:
28th December 2020
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
200 views / 79 downloads
Abstract

Magnetic films with two, four, six, and eight layers were prepared using 2D inkjet printing on the 333 K heated Si-substrates at ambient conditions. The microstructure, phase composition of layers, and magnetic studies were investigated using wide spectrum of experimental methods with the aim to find the optimal conditions for producing magnetic sensors by digital printing technology in the near future. As the magnetic compound, the hematite powder was chosen and its milling with Si-binder dissolved in dowanol using glass balls and vial to prevent contamination was done to prepared suspension appropriate for printing. It is shown that hematite transformed markedly into maghemite, thus the layers consisted of small amount hematite and dominant maghemite phases determining the magnetic properties. From the viewpoint of magnetic behavior, the highest saturation magnetization and the lowest coercivity was obtained at the sample with 8 layers.

Keywords: Inkjet printing, hematite, physical properties, testing methods

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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