论文信息 - Pyroelectric current spectroscopy: example of application on Nb doped Pb(Zr0.92Ti0.08)O3 ceramics for infrared detection

Pyroelectric current spectroscopy: example of application on Nb doped Pb(Zr0.92Ti0.08)O3 ceramics for infrared detection

Abstract Pyroelectric current spectroscopy (PCS) was used to investigate the homogeneity of the Nb doped lead zirconate–titanate Pb(Zr 0.92 Ti 0.08 )O 3 , (PZT) ceramics intended to be used in the infrared (IR) pyroelectric detectors manufacturing. The non-homogeneous composition in the ceramic volume is reflected by the occurrence of several peaks in the PCS spectra, suggesting the presence of PZT phases with different Zr/Ti ratio, thus having different transition temperatures. The non-homogeneity was confirmed by compositional analysis performed using an Energy Dispersive X-ray Spectrometer (EDAX) attached to a Scanning Electron Microscope (SEM). PCS can be a useful tool in optimizing the calcination and sintering parameters (temperature and time) during ceramic preparation.

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