Design of lead-free BCZT-based ceramics with enhanced piezoelectric energy harvesting performances

The design of lead-free ceramics for piezoelectric energy harvesting applications has become a hot topic. Among these materials, Ba Ca Zr Ti O (BCZT) and BaTi Sn O (BTSn) are considered as potential candidates due to their enhanced piezoelectric properties. Here, the structural, electrical, piezoele...

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Published in:Physical chemistry chemical physics : PCCP 2022-03, Vol.24 (10), p.6026-6036
Main Authors: Merselmiz, Soukaina, Hanani, Zouhair, Prah, Uroš, Mezzane, Daoud, Hajji, Lahoucine, Abkhar, Zahra, Spreitzer, Matjaž, Vengust, Damjan, Uršič, Hana, Fabijan, David, Razumnaya, Anna G, Shapovalova, Olesia, Luk'yanchuk, Igor A, Kutnjak, Zdravko
Format: Article
Language:English
Subjects:
Ceramics
Energy harvesting
Figure of merit
Lead free
Phase transitions
Physics
Piezoelectricity
Raman spectroscopy
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Summary:The design of lead-free ceramics for piezoelectric energy harvesting applications has become a hot topic. Among these materials, Ba Ca Zr Ti O (BCZT) and BaTi Sn O (BTSn) are considered as potential candidates due to their enhanced piezoelectric properties. Here, the structural, electrical, piezoelectric and piezoelectric energy harvesting properties of the (1 - )Ba Ca Zr Ti O - BaTi Sn O ( BTSn, = 0.2, 0.4 and 0.6) system are investigated. A systematic study of the structural properties of the BTSn samples was carried out using X-ray diffraction, Raman spectroscopy, and dielectric measurements. The addition of BTSn allows a successive phase transition, which broadens the application temperature range. The enhanced piezoelectric energy harvesting properties were found in the 0.2BTSn ceramic, where the large-signal and small-signal piezoelectric coefficients, piezoelectric voltage and the piezoelectric figure of merit reached 245 pm V , 228 pC N , 16.2 mV m N and 3.7 pm N , respectively. Consequently, the combination of BCZT and BTSn could provide suitable lead-free materials with enhanced piezoelectric energy harvesting performances.
ISSN:1463-9076
1463-9084
DOI:10.1039/d1cp04723j