By Topic

Electrical properties and orientations of dye molecules in LB films

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Kaneko, Futao ; Fac. of Eng., Niigata Univ., Japan ; Yamamoto, M. ; Inaba, Y. ; Kobayashi, S.

Fundamental electrical properties due to orientation of dye molecules were investigated for alternate-layer Langmuir-Blodgett (LB) films of merocyanine dyes (MC) and arachidic acids (C20), and squarylium dye (SQ) LB films. Spontaneous currents below room temperature were repeatedly observed in the alternate-layer LB films of MC and C20. The currents above room temperature remarkably increased with temperature above ~330 K in the first heating stage. The directions of the currents depended upon the orientations of the MC molecules in the alternate LB films. The spontaneous currents were related to the formation of the J aggregate of MC in the alternate LB films. Anisotropy of conduction currents of the SQ LB films was also investigated. The conductivity in the plane was due to the chromophore of the SQ molecules, and it was 104~105 times as much as the perpendicular conduction along the alkyl chains of the molecules. Anisotropic conduction in the plane caused by the orientation of SQ molecules was also observed

Published in:

Properties and Applications of Dielectric Materials, 1991., Proceedings of the 3rd International Conference on

Date of Conference:

8-12 Jul 1991