Structural and optical studies of doped potassium-sodium niobate ceramics

In the fields of sensors, actuators and ultrasonic gadgets, piezoelectric ceramics based on lead free KNN (1-8) had been brought due to the development in overall performance. The KNN based substances have the gain of low dielectric constants, excessive coupling coefficient and excessive mechanical...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2022-10, Vol.1263 (1), p.12014
Main Authors: Thrivikraman, V T, Sudheendran, K
Format: Article
Language:English
Subjects:
Actuators
Coupling coefficients
Lead free
Optical properties
Photoluminescence
Piezoelectric ceramics
Solid solutions
Transducers
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Summary:In the fields of sensors, actuators and ultrasonic gadgets, piezoelectric ceramics based on lead free KNN (1-8) had been brought due to the development in overall performance. The KNN based substances have the gain of low dielectric constants, excessive coupling coefficient and excessive mechanical electricity than lead containing ceramics that cause them to appropriate for excessive frequency transducers. The traits of KNN may be changed through appropriate dopants. (11) .Here we use Bi 3+ to dop with KNN to change the properties. Structural determinations of all studied solid solutions are completed through XRD and photoluminescence research had been achieved through the usage of spectrophotometer. Optical spectroscopy evaluation has been accomplished for every solid solution. Doping KNN with Bi 3+ at concentrations of 0.5 wt%, 1 wt % and 1.5wt%, respectively, improves the optical properties
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/1263/1/012014