Growth and Optical Properties of (Na_(0.5)Bi_(0.5))_(0.945)Ba_(0.055)TiO_3 Single Crystal
Abstract：(Na0.5Bi0.5)0.945Ba0.055TiO3(abbreviated as NBBT5.5) crystal with dimensions of Φ35 mm×12 mm was grown by the top-seeded-solution growth method with self flux though the cooling oxygen;The structure,thermal,optical and piezoelectric properties were investigated.XRD of crushed powder of NBBT indicated that the crystal is perovskite-type structure.The temperature of calcined and sintering was measured by the DSC-TG patterns that can improve the technology of NBBT crystals growth,so it can decrease the evaporation of Bi2O3 and Na2O.The excellent optical appearance of the NBBT5.5 crystal shows the transmittance decreases to zero at the wavelength of approximately 369 nm.For wavelengths longer than 390 nm,the films are transparent.The optical transmittance of the NBBT5.5 crystal was high enough(72% transmittance at wavelength above 1 000 nm) to be a candidate for many electro-optical applications.The piezoelectric constant d33 values of 438 pC/N are obtained,showing that they could be promising candidates as lead-free piezoelectric materials.
Keywords：lead-freecrystalNBBTtransmittancepiezoelectric constant
Publication Date：2012-01-01
Online Publishing Date：2026-08-28(First online date of this platform, not the publication date of the document)
Pages：4( 46-49 )