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1995 | 88 | 3 | 483-488
Article title

Counterion Effects on the Structure of Langmuir-Blodgett Films of a Benzothiazolium Dye

Content
Title variants
Languages of publication
EN
Abstracts
EN
Langmuir-Blodgett films of salts of the two-legged cationic dye, E-N-hexadecyl-2-[2-(4-docosylaminophenyl)ethenyl]benzothiazolium, are Z-type. The molecular configuration within the Langmuir-Blodgett film is either "U-shaped" or "stretched" depending upon the nature of the anion, the thickness per layer being 35.1 Å for the octadecylsulphate and 54.1 Å for the iodide. For the Langmuir-Blodgett monolayers the principal components of the second order susceptibility (χ_{zzz}^{(2)}) are 70 pm V^{-1} and 34 pm V^{-1} respectively at 532 nm. In the case of the octadecylsulphate salt it was possible to fabricate thick multilayer Langmuir-Blodgett films; the second harmonic intensity increased with the number of Z-type layers, albeit subquadratically, and this may be ascribed to a progressive variation in the chromophore tilt angle.
Keywords
EN
Publisher

Year
Volume
88
Issue
3
Pages
483-488
Physical description
Dates
published
1995-09
received
1995-05-05
(unknown)
1995-06-12
Contributors
author
  • Centre for Molecular Electronics, Cranfield University, Cranfield MK43 OAL, UK
author
  • Centre for Molecular Electronics, Cranfield University, Cranfield MK43 OAL, UK
author
  • Centre for Molecular Electronics, Cranfield University, Cranfield MK43 OAL, UK
author
  • Centre for Molecular Electronics, Cranfield University, Cranfield MK43 OAL, UK
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv88z306kz
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