Abstract
Langmuir-Blodgett (LB) films of dioctyldimethylammonium-Au(dmit) 2 [2C8-Au(dmit)2] salt show a relatively high room-temperature conductivity of up to 17 S/cm. The conductivity is as high as 50 ± 23 S/cm after electrochemical oxidation. A distinct absorption band is seen at 287 nm and it increases linearly with the number of layers, indicating a reproducible film deposition for up to 20 layers. During the post-treatment, the absorption peak decreases together with some shoulders and a broad band appears in the near-infrared (NIR) region with an isosbestic point at 609 nm, indicating the formation of conduction electrons. The UV/visible absorption spectrum changes markedly in the first 60 min of the post-treatment and becomes almost constant later, which corresponds well with the change in conductivity during the post-treatment.
Original language | English |
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Pages (from-to) | 394-396 |
Number of pages | 3 |
Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
Volume | 45 |
Issue number | 1 B |
DOIs | |
Publication status | Published - 2006 Jan 20 |
Externally published | Yes |
Keywords
- Electrochemical oxidation
- Langmuir-Blodgett films
- Metal(dmit) complexes
- UV/visible absorption spectroscopy
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)