[1] M BOULOS, S GUILLEMET-FRITSCH, F MATHIEU et al. Hydrothermal synthesis of nanosized BaTiO₃ powders and dielectric properties of corresponding ceramics. Solid State Ionics, 176(2005).

[2] G A TINA, P PUNETHA, G D ADHIKARY et al. Simultaneous increase in piezoelectric response and Curie point in BaTiO₃ based Pb-free piezoceramic. Scripta Materialia, 243, 115994(2024).

[3] T KARAKI, K YAN, T MIYAMOTO et al. Lead-free piezoelectric ceramics with large dielectric and piezoelectric constants manufactured from BaTiO₃ nano-powder. Japanese Journal of Applied Physics, 46, L97(2007).

[4] J HAO, W LI, J ZHAI et al. Progress in high-strain perovskite piezoelectric ceramics. Materials Science & Engineering R: Reports, 135, 1(2019).

[5] M ACOSTA, N NOVAK, V ROJAS et al. BaTiO₃-based piezoelectrics: fundamentals, current status, and perspectives. Applied Physics Reviews, 4(2017).

[6] L WANG, L LIU, D XUE et al. Wet routes of high purity BaTiO₃ nanopowders. Journal of Alloys and Compounds, 440(2007).

[7] Z SHEN, J LI. Enhancement of piezoelectric constant d₃₃ in BaTiO₃ ceramics due to nano-domain structure. Journal of the Ceramic Society of Japan, 118(2010).

[8] X WANG, Y ZHU, P ZHANG et al. Phase structure and piezoelectric property of (Ba_0.85Ca_0.15)(Ti_0.9Zr_0.1-xSn_x)O₃ lead-free piezoceramics. Journal of Inorganic Materials, 37(2022).

[9] C R BOWEN, J GITTINGS, I G TURNER et al. Dielectric and piezoelectric properties of hydroxyapatite-BaTiO₃ composites. Applied Physics Letters, 89(2006).

[10] J HU, H FAN, S WU et al. Characterization of temperature dependence of dielectric, elastic and piezoelectric properties of BaTiO₃ ceramics. Ceramics International, 48(2022).

[11] M CHEN, Z XU, R CHU et al. Polymorphic phase transition and enhanced piezoelectric properties in (Ba_0.9Ca_0.1)(Ti_1-xSn_x)O₃ lead- free ceramics. Materials Letters, 97, 86(2013).

[12] Q ZHAO, H XIAO, H F GENG et al. Highly-efficient piezocatalytic performance of nanocrystalline BaTi_0.89Sn_0.11O₃ catalyst with T_c near room temperature. Nano Energy, 85, 106028(2021).

[13] J PETZELT, V BOVTUN, D NUZHNYY et al. Broadband dielectric, terahertz, and infrared spectroscopy of BaTiO₃-BaZrO₃ solid solution: from proper ferroelectric over diffuse and relaxor ferroelectrics and dipolar glass to normal dielectric. Physica Status Solidi (b), 258(2021).

[14] G S KATHAIT, S MAINI, Dielectric. Dielectric, piezoelectric and energy storage properties of Ca, Zr and Sn doped (Ba_1-xCa_x)(Ti_0.85+xZr_0.02Sn_0.13-x)O₃ lead-free ceramics at MPB for 0.05≤x≤0.09. Materials Science and Engineering: B, 301, 117139(2024).

[15] W LIU, X REN. Large piezoelectric effect in Pb-free ceramics. Physical Review Letters, 103(2009).

[16] D XUE, Y ZHOU, H BAO et al. Large piezoelectric effect in Pb-free Ba(Ti,Sn)O₃-x(Ba,Ca)TiO₃ ceramics. Applied Physics Letters, 99(2011).

[17] L F ZHU, B P ZHANG, X K ZHAO et al. Enhanced piezoelectric properties of (Ba_1-xCa_x)(Ti_0.92Sn_0.08)O₃ lead-free ceramics. Journal of the American Ceramic Society, 96(2013).

[18] J FU, A XIE, T LI et al. Ultrahigh piezoelectricity in (Ba,Ca)(Ti,Sn)O₃ lead-free compounds with enormous domain wall contribution. Acta Materialia, 230, 117862(2022).

[19] N KUMAR, R KURCHANIA, R J BALL et al. Enhanced dielectric, ferroelectric and piezoelectric properties of lead-free (Ba,Ca)(Sn,Ti)O₃ ceramics by optimisation of sintering temperature. Journal of Alloys and Compounds, 989, 174358(2024).

[20] C ZHAO, H WANG, J XIONG et al. Composition-driven phase boundary and electrical properties in (Ba_0.94Ca_0.06)(Ti_1-xM_x)O₃ (M= Sn, Hf, Zr) lead-free ceramics. Dalton Transactions, 45(2016).

[21] Q F LIU, J J MA, M SHARMA et al. Photocatalytic, piezocatalytic, and piezo‐photocatalytic effects in ferroelectric (Ba_0.875Ca_0.125)(Ti_0.95Sn_0.05)O₃ ceramics. Journal of the American Ceramic Society, 102(2019).

[22] CHITRA, R LAISHRAM, A VASHISHTHA et al. Effect of holmium doping on structural, electrical and piezoelectric properties of lead-free (Ba,Ca)(Ti,Sn)O₃ ceramics. Journal of Materials Science: Materials in Electronics, 30, 3965(2019).

[23] B WU, D XIAO, J WU et al. Microstructure and electrical properties of (Ba_0.98Ca_0.02)(Ti_0.94Sn_0.06)O₃-xwt% ZnO lead-free piezoelectric ceramics sintered at lower temperature. Journal of Materials Science: Materials in Electronics, 26(2015).

[24] H SONG, C PENG, R HUANG et al. Effect of MnO₂ addition on the structure and electric properties of (Ba_0.94Ca_0.06)(Ti_0.9Sn_0.1)O₃ ceramics. Ceramics International, 44(2018).

[25] Y SUN, Y CHANG, J WU et al. Domain structures and piezoelectric properties of low-temperature sintered (Ba_0.95Ca_0.05)- (Ti_0.94Sn_0.06)O₃ ceramics with CuO additive. Materials Letters, 177, 128(2016).

[26] J L ZHANG, P F JI, Y Q WU et al. Strong piezoelectricity exhibited by large-grained BaTiO₃ ceramics. Applied Physics Letters, 104(2014).

[27] S YAN, Z CAO, Q LIU et al. Enhanced piezoelectric activity around orthorhombic-tetragonal phase boundary in multielement codoping BaTiO₃. Journal of Alloys and Compounds, 923, 166398(2022).

[28] H LENG, Y YAN, H LIU et al. Design and development of high- power piezoelectric ceramics through integration of crystallographic texturing and acceptor-doping. Acta Materialia, 206, 116610(2021).

[29] K N D K MUHSEN, R A M OSMAN, M S IDRIS et al. Effect of sintering temperature on (Ba_0.85Ca_0.15)(Sn_xZr_0.1-xTi_0.9)O₃ for piezoelectric energy harvesting applications. Ceramics International, 47(2021).

[30] S SHARMA, H SHARMA, S KUMAR et al. Analysis of sintering temperature effects on structural, dielectric, ferroelectric, and piezoelectric properties of BaZr_0.2Ti_0.8O₃ ceramics prepared by Sol-Gel method. Journal of Materials Science: Materials in Electronics, 31, 19168(2020).

[31] J DU, L QIU, C YANG et al. Structure and electrical properties in CuO-modified BCZT lead-free piezoelectric ceramics. Journal of Electroceramics, 49(2022).

[32] C TSAI, W LIAO, S CHU et al. Investigation of the piezoelectric and anti-reduction properties of (Ba,Ca)(Ti,Sn,Hf) textured ceramics prepared under low oxygen partial pressure conditions at low sintering temperatures. Journal of the European Ceramic Society, 41(2021).

[33] S SHI, H HASHIMOTO, T SEKINO. Optimizing the piezoelectric properties of Ba_0.85Ca_0.15Zr_0.10Ti_0.90O₃ lead-free ceramics via two-step sintering. Ceramics International, 49(2023).

[34] C LIU, J ZOU, X WANG et al. Processing, microstructure and piezoelectric properties of Li-doped BCZT ceramics. Ceramics International, 49(2023).

[35] M A MEKONNEN, M Z TADESSE. Low temperature sintering of (Ba_0.85Ca_0.15)(Ti_0.90Zr_0.10)O₃ lead-free piezoceramic with the additive of MnO₂. Journal of Electroceramics, 46(2021).

[36] L ZHAO, B ZHANG, P ZHOU et al. Effect of Li₂O addition on sintering and piezoelectric properties of (Ba,Ca)(Ti,Sn)O₃ lead-free piezoceramics. Journal of the European Ceramic Society, 35(2015).

[37] M C YU, C C TSAI, C S HONG et al. Effects of LiF on the properties of (Ba,Ca)(Ti,Sn,Hf)O₃-based multilayer ceramics co-fired with Ni at reduced atmosphere. Journal of the American Ceramic Society, 106(2023).