BN/NiO nanocomposites: Structural, defect chemistry and electrical properties in hydrogen gas atmosphere

Composite materials possess superior properties than their constituents which opens a field for different functional application devices. In present work films of boron nitride, nickel oxide and boron nitride/nickel oxide nanocomposite has been deposited using the drop-casting method. The structural...

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Bibliographic Details
Published in:Ceramics international 2020-11, Vol.46 (16), p.26233-26237
Main Authors: Singh, Kulwinder, Kaur, Manjot, Chauhan, Ishant, Awasthi, Amit, Kumar, Manjeet, Thakur, Anup, Kumar, Akshay
Format: Article
Language:English
Subjects:
BN/NiO
Defect states
Electrical properties
Hydrogen gas
Nanocomposites
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Summary:Composite materials possess superior properties than their constituents which opens a field for different functional application devices. In present work films of boron nitride, nickel oxide and boron nitride/nickel oxide nanocomposite has been deposited using the drop-casting method. The structural analysis confirmed BN and NiO phase formation and the presence of defect states in the deposited films. The morphological analysis also shows the change in the morphology with composite formation. Electrical results revealed that BN60/NiO40 nanocomposite possesses more resistivity than BN in the presence of hydrogen gas. A model has been proposed to explain variation in the electrical properties. To calculate the variation in resistivity with the change in hydrogen gas concentration, a linear regression technique has been used. It is observed that all BN, BN60/NiO40, and NiO films show significant (p 
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2020.07.084