Title :
Surface-acoustic-wave device incorporating conducting Langmuir-Blodgett films
Author :
Holcroft, B. ; Roberts, G.G. ; Barraud, A. ; Richard, Joyce
Author_Institution :
University of Oxford, Department of Engineering Science, Oxford, UK
Abstract :
Surface-acoustic-wave (SAW) devices incorporating conducting Langmuir-Blodgett (LB) films are reported for the first time. Excellent characteristics have been obtained using a mixed valence charge tranfer salt of a substituted pyridinium tetracyanoquinodimethane. The control afforded by the deposition technique has enabled the fractional change in surface wave velocity due to the electrical effects to be distinguished from those due to mass loading. The resistivity of the organic surface layer is measured to be 2¿cm.
Keywords :
Langmuir-Blodgett films; electric sensing devices; surface acoustic wave devices; 2 ohmcm; LB films; SAW devices; conducting Langmuir-Blodgett films; deposition technique; electrical effects; fractional change in surface wave velocity; mass loading; mixed valence charge transfer salt; organic surface layer; surface acoustic wave devices;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870321
