Possible rectification in Langmuir-Blodgett monolayers of organic D-σ-A molecules

Amphiphilic molecules D-σ-A (D = one-electron organic donor, σ = saturated linking bridge, A = good organic one-electron acceptor, such as TCNQ) form Pockels-Langmuir monolayers at the air-water interface, which can be transferred as Langmuir-Blodgett films onto solid substrates. Geometry-optimized...

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Bibliographic Details
Published in:Synthetic metals 1989-01, Vol.28 (1), p.807-814
Main Authors: Metzger, R.M., Panetta, C.A.
Format: Article
Language:English
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Summary:Amphiphilic molecules D-σ-A (D = one-electron organic donor, σ = saturated linking bridge, A = good organic one-electron acceptor, such as TCNQ) form Pockels-Langmuir monolayers at the air-water interface, which can be transferred as Langmuir-Blodgett films onto solid substrates. Geometry-optimized MNDO calculations for some of these molecules provide the molecular size, and rough guides for the foreward and reverse rectification barriers. Fourier transform infrared spectra of monolayers by grazing-angle reflectance are reported. Crude rectification experiments gave negative results. A modified scanning tunneling microscope revealed that a single molecule of the (n-dodecyl)-aminophenyl-carbamate of 2-bromo-5-hydroxyethoxyTCNQ (BDDAP-C- BHTCNQ), transferred as part of a Langmuir-Blodgett monolayer onto a Au | Ag | mica surface, behaves as a rectifier of electrical current.
ISSN:0379-6779
1879-3290
DOI:10.1016/0379-6779(89)90608-5