Pyroactive Sensitive Element of Position IR-Detector Based on Thin Film PZT-Si Structures

• Published in: Ferroelectrics 2003-01, Vol.288 (1), p.79-91
• Main Authors: Bravina, Svetlana L., Cattan, Eric, Fribourg-Blanc, Eric, Morozovsky, Nicholas V., Remiens, Denis
• Format: Article
• Language: English
• Subjects: Bolometer; infrared, submillimeter wave, microwave and radiowave receivers and detectors; Bolometers; infrared, submillimeter wave, microwave, and radiowave receivers and detectors; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Dielectrics, piezoelectrics, and ferroelectrics and their properties; Exact sciences and technology; Infrared, submillimeter wave, microwave and radiowave instruments, equipment and techniques; Instruments, apparatus, components and techniques common to several branches of physics and astronomy; Physics; Position-sensitive Pyroelectric Detectors; Pyroelectric and electrocaloric effects; Pyroelectric Hysteresis Loops; Pzt-Si Structures; Thermowave Method
• ISSN: 0015-0193; 1563-5112
• DOI: 10.1080/00150190390211981

Pt-PZT-Pt/Ti-SiO 2 /Si structures with (111)-oriented PZT (54/46) thin layer manufactured by RF magnetron sputtering were investigated by thermowave method including pyroelectric undersurface probing and "along surface" pyroelectric scanning in the modes of pyroelectric current and voltage. By using quadrant-diagonal electrode system the position-sensitive pyroelectric characteristics of such system were investigated in the mode of all main types of differential position-sensitive pyroelectric detectors of radiation. Experimental results are in a good agreement with obtained theoretical expressions for position characteristics for side-to-side, diagonal and top-to-top triangular configuration of 2-element differential system. The data on pyroelectric response-drive voltage loops investigations are presented and briefly discussed.