Title :
Pyroelectric Langmuir-Blodgett film structures based on an amphiphilic analogue of barbituric acid
Author :
Tsibouklis, J. ; Pearson, C. ; Cresswell, J.P. ; Warren, J. ; Petty, M. ; Petty, M.C. ; Feast, W.J.
Author_Institution :
Dept. of Chem., Portsmouth Polytech., UK
Abstract :
An amphiphilic analogue of barbituric acid, 5-n-docosylbarbituric acid, has been synthesised and used for the fabrication of alternate-layer Langmuir-Blodgett structures with 1-docosylamine and 22-tricosenoic acid. The films exhibited pyroelectric coefficients of 0.35 mu Cm/sup -2/ K/sup -1/ and 0.5 mu Cm/sup -2/ K/sup -1/ respectively. We suggest that these values may represent the pyroelectric activity associated with the amine and acid headgroups.<>
Keywords :
Langmuir-Blodgett films; dielectric thin films; organic compounds; pyroelectricity; 1-docosylamine; 22-tricosenoic acid; 5-n-docosylbarbituric acid; acid headgroups; alternate-layer Langmuir-Blodgett structures; amine headgroups; amphiphilic analogue; barbituric acid; pyroelectric Langmuir-Blodgett film structure; pyroelectric coefficients; tautomerism; ultrathin pyroelectric elements; Dielectric films; Molecular electronics; Organic compounds; Pyroelectricity;
Conference_Titel :
Molecular Electronic Devices, IEE Colloquium on
Conference_Location :
London, UK
