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Engineered microstructure for tailoring the pyroelectric performance of Ba0.85Sr0.15Zr0.1Ti0.9O3 ceramics by 3BaO-3TiO2-B2O3 glass addition

Srikanth, K.S. and Patel, Satyanarayan and Steiner, Sebastian and Vasih, Rahul (2017):
Engineered microstructure for tailoring the pyroelectric performance of Ba0.85Sr0.15Zr0.1Ti0.9O3 ceramics by 3BaO-3TiO2-B2O3 glass addition.
In: Applied Physics Letters, AIP Publishing, pp. 1-5, 110, (232901), ISSN 00036951,
DOI: 10.1063/1.4984798,
[Online-Edition: http://dx.doi.org/10.1063/1.4984798],
[Article]

Abstract

3BaO-3TiO2-B2O3 (BTBO) glass-added ferroelectric Ba0.85Sr0.15Zr0.1Ti0.9O3 (BST-BZT) ceramics were synthesized using a conventional solid state reaction route. BTBO glass settled at grain boundaries which has been confirmed from energy dispersive X-ray spectroscopy (EDX). Such effects were observed to benefit properties like the pyroelectric coefficient from 3.4x10^-4 C/m2K (0% glass) to 4.29x10^-4 C/m2K (2% by wt. glass) at 303 K. The dielectric constant decreased from 2937 to 2514 with 2% glass addition at 303K (1 kHz). However, this reduction in dielectric constant increases the pyroelectric figure of merits (FOMs) for high current responsivity (Fi), voltage responsivity (Fv), detectivity (Fd), energy harvesting (Fe), and (F*e ) by 50%, 126%, 49%, 81%, and 76%, respectively, for 2% glass sample as compared with 0% glass at 303 K. Some of the FOMs even surpass the reported FOMs of well-known pyroelectric ceramics. Published by AIP Publishing.

Item Type: Article
Erschienen: 2017
Creators: Srikanth, K.S. and Patel, Satyanarayan and Steiner, Sebastian and Vasih, Rahul
Title: Engineered microstructure for tailoring the pyroelectric performance of Ba0.85Sr0.15Zr0.1Ti0.9O3 ceramics by 3BaO-3TiO2-B2O3 glass addition
Language: English
Abstract:

3BaO-3TiO2-B2O3 (BTBO) glass-added ferroelectric Ba0.85Sr0.15Zr0.1Ti0.9O3 (BST-BZT) ceramics were synthesized using a conventional solid state reaction route. BTBO glass settled at grain boundaries which has been confirmed from energy dispersive X-ray spectroscopy (EDX). Such effects were observed to benefit properties like the pyroelectric coefficient from 3.4x10^-4 C/m2K (0% glass) to 4.29x10^-4 C/m2K (2% by wt. glass) at 303 K. The dielectric constant decreased from 2937 to 2514 with 2% glass addition at 303K (1 kHz). However, this reduction in dielectric constant increases the pyroelectric figure of merits (FOMs) for high current responsivity (Fi), voltage responsivity (Fv), detectivity (Fd), energy harvesting (Fe), and (F*e ) by 50%, 126%, 49%, 81%, and 76%, respectively, for 2% glass sample as compared with 0% glass at 303 K. Some of the FOMs even surpass the reported FOMs of well-known pyroelectric ceramics. Published by AIP Publishing.

Journal or Publication Title: Applied Physics Letters
Volume: 110
Number: 232901
Publisher: AIP Publishing
Divisions: 11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
11 Department of Materials and Earth Sciences
Date Deposited: 04 Jul 2017 05:38
DOI: 10.1063/1.4984798
Official URL: http://dx.doi.org/10.1063/1.4984798
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