In this work, Ba_(1−x)Sr_xTiO₃ have been synthesized using the sol- sol technique in order to realize a pyroelectric detector allowing measurement of optical radiation. XRD diffraction shows a number of sharp peaks that crystallized in the tetragonal structure with p4mm space group. FTIR indicates the vibration of mode Ti—O at the octahedral site. The AFM shows inhomogeneous materials with different grain size (3–5 µm) and the rough surface. The adequate electrical R//CPE circuit has been determined to evaluate the grains contributions in complex impedance results. The dielectric permittivity present a great dielectric constant at low frequency for Ba_(1−x)Sr_xTiO₃.

在这项工作中，Ba _（1-x） Sr _x TiO ₃已使用溶胶-溶胶技术合成，以实现可测量光辐射的热电探测器。XRD衍射显示出许多尖峰，这些尖峰在具有p4mm空间基团的四方结构中结晶。FTIR表示八面体位置处模式Ti-O的振动。原子力显微镜显示出不均匀的材料，它们具有不同的晶粒尺寸（3–5 µm）和粗糙的表面。已经确定了适当的电气R // CPE电路，以评估复阻抗结果中的晶粒贡献。对于Ba _（1-x） Sr _x TiO _3，介电常数在低频下呈现出很大的介电常数。