On the Sol-Gel Synthesis of Zinc-Oxide Semiconductor Powder for Varistor Structures

The synthesis of a varistor powder based on ZnO is carried out with the further fabrication of a device structure within the framework of the sol-gel method. To monitor the processes occurring in the sol, the method of Fourier-transform infrared spectroscopy is used. Studies of the surface structure...

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Bibliographic Details
Published in:Nanobiotechnology Reports (Online) 2023-12, Vol.18 (Suppl 1), p.S175-S178
Main Authors: Filippov, I. A., Pronin, I. A., Kitaev, A. S.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Current voltage characteristics
Devices and Products Based on Nanomaterials and Nanotechnologies
Fourier transforms
Grain size
Industrial and Production Engineering
Machines
Manufacturing
Materials Science
Nanotechnology
Nonlinearity
Processes
Sintering (powder metallurgy)
Sol-gel processes
Surface structure
Synthesis
Varistors
Zinc oxide
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Summary:The synthesis of a varistor powder based on ZnO is carried out with the further fabrication of a device structure within the framework of the sol-gel method. To monitor the processes occurring in the sol, the method of Fourier-transform infrared spectroscopy is used. Studies of the surface structure of the material are carried out using scanning electron microscopy. The constructed current–voltage characteristic of the varistor structure is nonlinear with a nonlinearity coefficient of 2.36. The use of the sol-gel method for the manufacture of devices of this type makes it possible to obtain a grain size of 0.25 μm and achieve a reduction in the sintering temperature to 900°C.
ISSN:2635-1676
1995-0780
2635-1684
1995-0799
DOI:10.1134/S2635167623600748