PbSc_(0.5)Ta_(0.5)O_3 pyroelectric materials and their application in pyroelectric detector arrays

Pyroelectric materials were widely used in the detection of IR, which can detect large range of infrared radiations, and the detectors do not need to be cooled. In recent year, PbSc0.5Ta0.5O3 (PST) as a kind of pyroelectric material which operates in bolometer mode, has involved more interesting. The material has higher pyroelectric efficient, dielectric constant and higher detecting merits than other common pyroelectric materials such as PZT. This paper reviews the dielectric and pyroelectric properties and the development of pyroelectric array of PST ceramics and the status of the dielectric and pyroelectric properties and the development of pyroelectric array of PST thin films at present. 