Enhanced acetone gas sensing behavior of n-ZnO/p-NiO nanostructures

In this present investigation, a hybrid core–shell nanostructure with uniform nanocrystalline shaped NiO/ZnO (NZO) were synthesized for the acetone chemical gas sensing study. The hybrid semiconductor n -ZnO/ p -NiO nanostructures were prepared by simple wet-chemical route trailed by spin coated thi...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2018-04, Vol.29 (8), p.6666-6671
Main Authors: Kavitha, G., Arul, K. Thanigai, Babu, P.
Format: Article
Language:English
Subjects:
Acetone
Characterization and Evaluation of Materials
Chemical synthesis
Chemistry and Materials Science
Composite materials
Crystal lattices
Crystal structure
Detection
Gas sensors
Gases
Investigations
Materials Science
Metal oxides
Musical performances
Nanocomposites
Nanoparticles
Nanostructure
Nickel oxides
Optical and Electronic Materials
Photovoltaic cells
Physics
Sensors
Thin films
Zinc oxide
Zinc oxides
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Summary:In this present investigation, a hybrid core–shell nanostructure with uniform nanocrystalline shaped NiO/ZnO (NZO) were synthesized for the acetone chemical gas sensing study. The hybrid semiconductor n -ZnO/ p -NiO nanostructures were prepared by simple wet-chemical route trailed by spin coated thin films process. X-ray diffraction analysis was revealed the both well-crystalline structural phases of NZO exhibited along with predominant NiO phase appeared. HR-TEM (high-resolution transmission electron microscope) observation was showed core–shell shaped hexagonal crystal structure and lattice fringes confirmed the presence of ZnO nanoparticles. In situ laboratory acetone chemical vapor was employed for gas sensing behavior of ZnO/NiO-700 °C. It showed superior gas sensing of acetone (500 ppm) along with rapid recovery response (18 s). Hence, ZnO/NiO nanostructures are excellent candidate for acetone chemical gas sensing applications.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-018-8652-9