In the development of the pyroelectric infrareal detector , the single crystal pyroelectrics ispaid great attention due to its excellent characters in the pyroelectric coefficient i ,dielectric con- stont e and dielectric loss tangy. But the production of the single crystal material needs the complexprocess , long cycle and great expenses ,and it can not withstand the high power radiation. So ,itsapplications are limited , and several polycrystalline pyroelectric materials are studied and devel- oped. PZT (lead zirconate titanate) is a pyroelectric material that can overcome the above weak- nesses of the single crystal material and possesses the resistance to heat , damp and oxidation.Heance ,its application fileds are very wide.
Ping Wu, Ping Wu,
"PBZT infrared material and detector", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 21041R (30 August 1993); doi: 10.1117/12.2298495; https://doi.org/10.1117/12.2298495