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기술보고서

기술보고서 게시판 내용
타이틀	Pyroelectric Materials for Uncooled Infrared Detectors: Processing, Properties, and Applications
저자	Aggarwal, M. D.;; Batra, A. K.;; Guggilla, P.;; Edwards, M. E.;; Penn, B. G.;; Currie, J. R., Jr.
Keyword	CERAMIC MATRIX COMPOSITES;; CRYSTAL GROWTH;; FERROELECTRICITY;; INFRARED DETECTORS;; PHYSICAL FACTORS;; PYROELECTRICITY;; SECURITY;; SINGLE CRYSTALS;; SPACE EXPLORATION;; SURVEILLANCE;; THICK FILMS;; WARNING SYSTEMS
URL	http://hdl.handle.net/2060/20110008068
보고서번호	NASA/TM-2010-216373
발행년도	2010
출처	NTRS (NASA Technical Report Server)
ABSTRACT	Uncooled pyroelectric detectors find applications in diverse and wide areas such as industrial production;; automotive;; aerospace applications for satellite-borne ozone sensors assembled with an infrared spectrometer;; health care;; space exploration;; imaging systems for ships, cars, and aircraft;; and military and security surveillance systems. These detectors are the prime candidates for NASA s thermal infrared detector requirements. In this Technical Memorandum, the physical phenomena underlying the operation and advantages of pyroelectric infrared detectors is introduced. A list and applications of important ferroelectrics is given, which is a subclass of pyroelectrics. The basic concepts of processing of important pyroelectrics in various forms are described: single crystal growth, ceramic processing, polymer-composites preparation, and thin- and thick-film fabrications. The present status of materials and their characteristics and detectors figures-of-merit are presented in detail. In the end, the unique techniques demonstrated for improving/enhancing the performance of pyroelectric detectors are illustrated. Emphasis is placed on recent advances and emerging technologies such as thin-film array devices and novel single crystal sensors.