标题：HYDROSTATIC PIEZOELECTRIC PROPERTIES OF BISMUTH TRIBORATE CRYSTALS
作者：Wang, He-wei; Chen, Fei-fei; Yu, Fa-peng; Zhang, Shu-jun; Zhao, Xian
作者机构：[Wang, He-wei; Chen, Fei-fei; Yu, Fa-peng; Zhao, Xian] Shandong Univ, Inst Crystal Mat, Jinan 250100, Peoples R China.; [Wang, He-wei; Chen, Fei-fei 更多
会议名称：10th Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA)
会议日期：OCT 30-NOV 02, 2015
来源：PROCEEDINGS OF THE 2015 SYMPOSIUM ON PIEZOELECTRICITY, ACOUSTIC WAVES AND DEVICE APPLICATIONS
关键词：Piezoelectric crystals; BIBO; Hydrostatic; Sensor
摘要：In this report, the dielectric and hydrostatic piezoelectric properties of the monoclinic bismuth triborate crystals (BiB3O6, BIBO) were investigated at ambient temperature for potential hydrophone application. The pressure dependence of the hydrostatic charge and voltage coefficients dielectric properties (d(h) and g(h)), and hydrostatic figure of merit (FOM) d(h)xg(h), were also studied. Results indicated that the BIBO crystals possess low dielectric loss being on the order of <0.1% at room temperature. The hydrostatic piezoelectric coefficient d(h) for BIBO crystals was experimentally obtained to be d(h) = 3.3 pC/N, while the piezoelectric hydrostatic coefficient g(h) was obtained to be on the order of g(h) = 44.4x10(-3) V.m/N. Moreover, the FOM value was found to be on the order of 0.15 pm(2)/N, comparable to that of PMN-PT single crystals (0.12-0.78 pm(2)/N). In addition, the pressure coefficient a(1)/d(h) (1.0x10(-4) ppm/Pa) was calculated and found much lower than the reported PMN-PT single crystals (similar to 0.001 ppm/Pa).