Design of lead-free BCZT-based ceramics with enhanced piezoelectric energy harvesting performances. Issue 10 (24th February 2022)

• Record Type: Journal Article
• 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
• Is Part Of: Physical chemistry chemical physics. Volume 24:Issue 10(2022)
• Page Start: 6026
• Page End: 6036
• Publication Date: 2022-02-24
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/d1cp04723j
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : The benefits of the multiphase convergence strategy to design ferroelectric ceramics for piezoelectric energy harvesting applications over a broad temperature range. Abstract : The design of lead-free ceramics for piezoelectric energy harvesting applications has become a hot topic. Among these materials, Ba0.85 Ca0.15 Zr0.10 Ti0.90 O3 (BCZT) and BaTi0.89 Sn0.11 O3 (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 − x )Ba0.85 Ca0.15 Zr0.10 Ti0.90 O3 − x BaTi0.89 Sn0.11 O3 ( x BTSn, x = 0.2, 0.4 and 0.6) system are investigated. A systematic study of the structural properties of the x 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 −1, 228 pC N −1, 16.2 mV m N −1 and 3.7 pm 2 N −1, respectively. Consequently, the combination of BCZT and BTSn could provide suitable lead-free materials with enhanced piezoelectric energy harvesting performances.