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Effect of amphoteric dopant on the dielectric and structural properties of yttrium doped potassium sodium niobate thin film

Mohd Hatta, Maziati Akmal and Abd Rashid, Mohd Warikh M. and Azlan, Umar Al Amani and Azam, Mohd Asyadi and Ismail, Syahriza (2016) Effect of amphoteric dopant on the dielectric and structural properties of yttrium doped potassium sodium niobate thin film. Materials Letters, 170. pp. 10-14. ISSN 0167-577X

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Abstract

The amphoteric dopant effects on dielectric and structural properties of KNN were studied. The trace amounts of dopant were incorporated into the KNN lattice and formed the orthorhombic perovskite structure. The distribution of yttrium dopant on the perovskite lattice is responsible for enhancement of dielectric behaviors of KNN films. The dielectric loss is reduced from 0.18% to 0.0125%, owing to the distribution of yttrium dopant at A-site lattice. Meanwhile, the tendency of Y3þ to occupy the B-site lattice at high dopant concentration causes an increase in dielectric loss. The particles size of the KNN at 0.5 mol% yttrium was found to be uniform while porous structures were formed with increasing dopant concentration.

Item Type: Article (Journal)
Additional Information: 8252/62702
Uncontrolled Keywords: KNN, Yttrium, Thin film, Doped, Structural, Lattice
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Science
Depositing User: Mdm Maziati Akmal
Date Deposited: 05 Apr 2018 09:27
Last Modified: 05 Apr 2018 09:27
URI: http://irep.iium.edu.my/id/eprint/62702

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