Fabrication of lithium substituted copper ferrite (Li-CuFe2O4) thin film as an efficient gas sensor at room temperature

Fabrication of lithium substituted copper ferrite (Li-CuFe2O4) thin film as an efficient gas sensor at room temperature

A Li-CuFe2O4thinfilm has a well-defined nanocrystalline structure with a crystallite size of ~17 nm. The TEM and SEM images of the Li-CuFe2O4thinfilm show a polyhedron shape of nanoparticles with uneven sizes, resulting in a significant change in its gas sensing characteristics such as sensitivity a...

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Bibliographic Details
Main Authors: Manikandan, V., Singh, Monika, Yadav, B.C., Denardin, Juliano C.
Format: Article
Language:English
Published: H. : ĐHQGHN 2018
Subjects:
Gas sensor
Thin film
Surface growth
Ferrites
Online Access:http://repository.vnu.edu.vn/handle/VNU_123/62906
https://doi.org/10.1016/j.jsamd.2018.03.008
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Institution: Vietnam National University, Hanoi
Language: English
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Summary:A Li-CuFe2O4thinfilm has a well-defined nanocrystalline structure with a crystallite size of ~17 nm. The TEM and SEM images of the Li-CuFe2O4thinfilm show a polyhedron shape of nanoparticles with uneven sizes, resulting in a significant change in its gas sensing characteristics such as sensitivity and sensor response. An optical analysis shows that the Li-CuFe2O4thinfilm has a semiconducting nature, and the band gap of the thinfilm is determined to be 1.15 eV. The gas sensor analysis demonstrates repeatability of the sensing behavior of the Li-CuFe2O4 thin film and this ensures a reliable and efficient gas sensor at room temperature.

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