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Tunable Pyroelectricity around the Ferroelectric/ Antiferroelectric Transition

Patel, Satyanarayan and Weyland, Florian and Tan, Xiaoli and Novak, Nikola (2018):
Tunable Pyroelectricity around the Ferroelectric/ Antiferroelectric Transition.
In: Energy Technology, WILEY-VCH Verlag, pp. 872-880, 2018, (6), ISSN 2194-4296,
DOI: 10.1002/ente.201700411,
[Article]

Abstract

The pyroelectric performance of Pb0.99Nb0.02[(Zr0.57Sn0.43)0.92Ti0.08]0.98O3 ceramics was quantified by dielectric, polarization, and specific heat capacity measurements. The tunability of pyroelectric properties upon electric field application was studied as a function of temperature. The large pyroelectric coefficient of 0.28 Cm^-2K^-1 was associated with the ferroelectric (FE)–antiferroelectric (AFE) phase transition. The pyroelectric coefficient can be tuned over a broad temperature range of almost 40 K above the zero electric field phase transition. Electrical and thermal measurements were used to estimate various pyroelectric figures of merit. Pyroelectric figures of merit are almost three order of magnitude higher than those previously reported in FE materials. The large pyroelectric properties indicate that the investigated material is a promising candidate for many pyroelectric applications.

Item Type: Article
Erschienen: 2018
Creators: Patel, Satyanarayan and Weyland, Florian and Tan, Xiaoli and Novak, Nikola
Title: Tunable Pyroelectricity around the Ferroelectric/ Antiferroelectric Transition
Language: English
Abstract:

The pyroelectric performance of Pb0.99Nb0.02[(Zr0.57Sn0.43)0.92Ti0.08]0.98O3 ceramics was quantified by dielectric, polarization, and specific heat capacity measurements. The tunability of pyroelectric properties upon electric field application was studied as a function of temperature. The large pyroelectric coefficient of 0.28 Cm^-2K^-1 was associated with the ferroelectric (FE)–antiferroelectric (AFE) phase transition. The pyroelectric coefficient can be tuned over a broad temperature range of almost 40 K above the zero electric field phase transition. Electrical and thermal measurements were used to estimate various pyroelectric figures of merit. Pyroelectric figures of merit are almost three order of magnitude higher than those previously reported in FE materials. The large pyroelectric properties indicate that the investigated material is a promising candidate for many pyroelectric applications.

Journal or Publication Title: Energy Technology
Volume: 2018
Number: 6
Publisher: WILEY-VCH Verlag
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: 15 May 2018 07:47
DOI: 10.1002/ente.201700411
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