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

Offizielle URL: http://dx.doi.org/10.1063/1.4984798

Kurzbeschreibung (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.

Typ des Eintrags: Artikel
Erschienen: 2017
Autor(en): Srikanth, K.S. ; Patel, Satyanarayan ; Steiner, Sebastian ; Vasih, Rahul
Titel: Engineered microstructure for tailoring the pyroelectric performance of Ba0.85Sr0.15Zr0.1Ti0.9O3 ceramics by 3BaO-3TiO2-B2O3 glass addition
Sprache: Englisch
Kurzbeschreibung (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.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Applied Physics Letters
Band: 110
(Heft-)Nummer: 232901
Verlag: AIP Publishing
Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe
11 Fachbereich Material- und Geowissenschaften
Hinterlegungsdatum: 04 Jul 2017 05:38
Offizielle URL: http://dx.doi.org/10.1063/1.4984798
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