Pyroelectric current spectroscopy: example of application on Nb doped Pb(Zr0.92Ti0.08)O-3 ceramics for infrared detection

• Tipo: Artigo em Revista Científica Internacional
• Data: 2004

Autores

Pintilie, L (Autor) Outra; Pereira, M (Autor) Outra; Gomes, MJM (Autor) Outra; Boerasu, I (Autor) Outra

Revista

Título: Sensors and Actuators, A: Physical

Vol. 115

Páginas: 185-190

ISSN: 0924-4247

Editora: Elsevier

Indexação

ISI Web of Knowledge - 9 Citações

Scopus - 10 Citações

Outras Informações

ID Authenticus: P-000-8GM

DOI: 10.1016/j.sna.2004.01.020

Abstract (EN): 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6