(Na, K)NbO3-Based Ceramics for Self-Powered Energy Harvesting Applications
- Authors
- Kim, Jinhwan; Koh, Jung-Hyuk
- Issue Date
- Mar-2015
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Energy Harvesting; 0.97(Na0.5K0.5)NbO3-0.03(Bi0.5Na0.5)TiO3; Sintering Temperature
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.15, no.3, pp 2360 - 2363
- Pages
- 4
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 15
- Number
- 3
- Start Page
- 2360
- End Page
- 2363
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/9775
- DOI
- 10.1166/jnn.2015.10268
- ISSN
- 1533-4880
1533-4899
- Abstract
- Self-powered energy harvesting technologies have been intensively investigated by employing Pb-free piezoelectric materials. One such Pb-free piezoelectric material, the ceramic 0.97(Na0.5K0.5)NbO3-0.03(Bi0.5Na0.5)TiO3, was prepared by employing the conventional mixed oxide method. 0.97(Na0.5K0.5)NbO3-0.03(Bi0.5Na0.5)TiO3 ceramics were prepared and the effect of sintering temperature on the microstructure, piezoelectric and ferroelectric properties were systematically investigated for energy harvesting applications. The crystal structure of 0.97(Na0.5K0.5)NbO3-0.03(Bi0.5Na0.5)TiO3 Pb-free piezoelectric ceramics, sintered at temperatures between 1080 degrees C and 1160 degrees C, was examined by X-ray diffraction analysis. The dielectric properties of 0.97(Na0.5K0.5)NbO3-0.03(Bi0.5Na0.5)TiO3 ceramics were measured from 1 kHz to 1 MHz for the various sintering temperatures. We expect that optimization of sintering parameters can improve the piezoelectric and ferroelectric properties of 0.97(Na0.5K0.5)NbO3-0.03(Bi0.5Na0.5)TiO3 ceramics for energy harvesting.
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