Pyroelectric current spectroscopy: example of application on Nb doped Pb(Zr0.92Ti0.08)O3 ceramics for infrared detection
| Autor: | M. J. M. Gomes, Lucian Pintilie, I. Boerasu, Mário Pereira |
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| Rok vydání: | 2004 |
| Předmět: |
Materials science
Infrared Scanning electron microscope Analytical chemistry Niobium Sintering chemistry.chemical_element 02 engineering and technology 01 natural sciences law.invention law 0103 physical sciences Calcination Ceramic Electrical and Electronic Engineering Spectroscopy Instrumentation 010302 applied physics Metals and Alloys 021001 nanoscience & nanotechnology Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Pyroelectricity chemistry visual_art visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | Sensors and Actuators A: Physical. 115:185-190 |
| ISSN: | 0924-4247 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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