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Journal of Sol-Gel Science and Technology
Erschienen in: Journal of Sol-Gel Science and Technology 3/2018

03.09.2018 | Original Paper: Sol–gel and hybrid materials for optical, photonic and optoelectronic applications

Structural, optical and photoluminescence properties of K0.5Na0.5NbO3 ceramics synthesized by sol–gel reaction method

verfasst von: Shammi Kumar, Mamta Shandilya, Shweta Thakur, Nagesh Thakur

Erschienen in: Journal of Sol-Gel Science and Technology | Ausgabe 3/2018

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Abstract

Potassium sodium niobate (KNN) ceramics have been prepared by sol–gel route. The effect of conventional sintering on its optical and photoluminescence properties has been studied. Optical measurements were done by reflectance measurements of the ceramics which showed decrease in optical band gap energy with an increase in sintering temperature. A room temperature photoluminescence (PL) spectrum was taken at an excitation wavelength of 300 nm. The existence of green emission confirms the existence of oxygen vacancies in the sample. Raman spectroscopy analysis revealed changes in Raman scattering mode for KNN ceramics sintered at different temperatures. I–V characteristics have been studied from 20–180 V disclosed that increase in sintering temperature favor higher order of leakage current at room temperature.
Vorheriger Artikel Preparation of epitaxial CaMn7O12 film via sol-gel method and its ferromagnetic properties
Nächster Artikel Synthesis and antibacterial activity of Ag/CeO2 hybrid architectures

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Metadaten
Titel
Structural, optical and photoluminescence properties of K0.5Na0.5NbO3 ceramics synthesized by sol–gel reaction method
verfasst von
Shammi Kumar
Mamta Shandilya
Shweta Thakur
Nagesh Thakur
Publikationsdatum
03.09.2018
Verlag
Springer US
Erschienen in
Journal of Sol-Gel Science and Technology / Ausgabe 3/2018
Print ISSN: 0928-0707
Elektronische ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-018-4791-y

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