Pyroelectric activity in Langmuir-Blodgett multilayer assemblies

Author

Colbrook, R. ; Roberts, G.G.

Author_Institution

Dept. of Eng. Sci., Oxford Univ., UK

fYear

1990

fDate

6-8 Jun 1990

Firstpage

63

Lastpage

66

Abstract

The pyroelectric effect in Langmuir-Blodgett (LB) alternate layer films of 22-tricosenoic acid and 1-docosylamine and films of an organo-ruthenium complex (ruthenium (η⁵-cyclopentadienyl)-(b triphenylphosphine) 4-heptadecoxybenzonitrile hexafluoro-phosphate) is reported. Methods of increasing the pyroelectric response and thermal stability of the films are discussed. Values of the quasi-static pyroelectric coefficient as high as 17 μCm^-2 K^-1 have been achieved. The figures of merit of these films incorporated in a room-temperature thermal imaging device are presented, one of which is in excess of those for VDF/TrFE copolymer films

Keywords

Langmuir-Blodgett films; infrared imaging; organic compounds; pyroelectricity; 1-docosylamine; 22-tricosenoic acid; Langmuir-Blodgett multilayer assemblies; alternate layer films; figures of merit; films; organo-ruthenium complex; pyroelectric effect; pyroelectric response; quasi-static pyroelectric coefficient; room-temperature thermal imaging device; ruthenium (η⁵-cyclopentadienyl)-(b triphenylphosphine) 4-heptadecoxybenzonitrile hexafluoro-phosphate; thermal stability; Assembly; Ferroelectric films; Ferroelectric materials; Liquid crystal devices; Liquid crystal polymers; Nonhomogeneous media; Polymer films; Pyroelectricity; Substrates; Thermal stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 1990., IEEE 7th International Symposium on

Conference_Location

Urbana-Champaign, IL

Print_ISBN

0-7803-0190-0

Type

conf

DOI

10.1109/ISAF.1990.200182

Filename

200182