Potassium dihydrogen phosphate and potassium tantalate niobate pyroelectric materials and far-infrared detectors

Thesis/Dissertation · Fri Oct 01 00:00:00 EDT 1993

DOI:https://doi.org/10.2172/10109402· OSTI ID:10109402

Baumann, Hilary Beatrix ^[1]

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1. Lawrence Berkeley Lab., CA (United States); [California Univ., Berkeley, CA (United States). Dept. of Materials Science and Mineral Engineering

This thesis discusses characterization of two ferroelectric materials and the fabrication of bolometers. Potassium tantalate niobate (KTN) and potassium dihydrogen phosphate (KDP) are chosen because they can be optimized for operation near 100K. Chap. 2 reviews the physics underlying pyroelectric materials and its subclass of ferroelectric materials. Aspects of pyroelectric detection are discussed in Chap. 3 including measurement circuit, noise sources, and effects of materials properties on pyroelectric response. Chap. 4 discusses materials selection and specific characteristics of KTN and KDP; Chap. 5 describes materials preparation; and Chap. 6 presents detector configuration and a thermal analysis of the pyroelectric detector. Electrical techniques used to characterize the materials and devices and results are discussed in Chap. 7 followed by conclusions on feasibility of KDP and KTN pyroelectric detectors in Chap. 8.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: National Aeronautics and Space Administration, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 10109402
• Report Number(s): LBL-34832; ON: DE94004559; CNN: Contract A59513C
• Resource Relation: Related Information: Thesis (M.S.)
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
47 OTHER INSTRUMENTATION
36 MATERIALS SCIENCE
BOLOMETERS
FAR INFRARED RADIATION
DETECTION
POTASSIUM COMPOUNDS
TANTALATES
NIOBATES
ACID PHOSPHATES
PYROELECTRIC EFFECT
FERROELECTRIC MATERIALS
440100
440600
360606
RADIATION INSTRUMENTATION
OPTICAL INSTRUMENTATION
PHYSICAL PROPERTIES