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Titolo:
Formation of metallic Langmuir film on the water surface with fatty acid and BEDO-TTF molecules
Autore:
Ohnuki, H; Desbat, B; Giffard, M; Izumi, M; Imakubo, T; Mabon, G; Delhaes, P;
Indirizzi:
Ctr Rech Paul Pascal, F-33600 Pessac, France Ctr Rech Paul Pascal PessacFrance F-33600 ascal, F-33600 Pessac, France RIKEN, Condensed Mol Mat Lab, Wako, Saitama 3510198, Japan RIKEN Wako Saitama Japan 3510198 ol Mat Lab, Wako, Saitama 3510198, Japan Tokyo Univ Mercantile Marine, Appl Phys Lab, Koto Ku, Tokyo 1358533, JapanTokyo Univ Mercantile Marine Tokyo Japan 1358533 u, Tokyo 1358533, Japan Univ Angers, UMR CNRS 6501, Lab Ingn Mol & Mat Organ, F-49045 Angers, France Univ Angers Angers France F-49045 ol & Mat Organ, F-49045 Angers, France Univ Bordeaux 1, UMR 5803 CNRS, Lab Physicochim Mol, F-33405 Talence, France Univ Bordeaux 1 Talence France F-33405 chim Mol, F-33405 Talence, France
Titolo Testata:
JOURNAL OF PHYSICAL CHEMISTRY B
fascicolo: 21, volume: 105, anno: 2001,
pagine: 4921 - 4927
SICI:
1520-6106(20010531)105:21<4921:FOMLFO>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
FT-IR SPECTROSCOPY; BLODGETT-FILMS; ELECTRICAL-PROPERTIES; THIN-FILMS; REFLECTANCE; INTERFACE; SALTS; TETRACYANOQUINODIMETHANE; TRANSMITTANCE; DERIVATIVES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Ohnuki, H Ctr Rech Paul Pascal, Ave A Schweitzer, F-33600 Pessac, France Ctr Rech Paul Pascal Ave A Schweitzer Pessac France F-33600 nce
Citazione:
H. Ohnuki et al., "Formation of metallic Langmuir film on the water surface with fatty acid and BEDO-TTF molecules", J PHYS CH B, 105(21), 2001, pp. 4921-4927

Abstract

The formation process of metallic Langmuir film on the water surface fabricated from BEDO-TTF (BO) and stearic acid (SA) is described. The in-situ observation by Brewster angle microscope revealed a creation of small islandsafter spreading the mixing solution on the water surface and then a formation of homogeneous Langmuir film by a coalescence of the islands with decreasing of the surface area. An appearance of mixed valence state of BO in both islands and Langmuir film was confirmed by polarization-modulated IR reflection absorption spectroscopy. A theoretical simulation of the spectra supports the bilayer model on the water surface, in which a metallic BO layerunderlies between the SA layer and the water surface. An investigation on the Langmuir-Blodgett (LB) films transferred onto substrates by infrared spectroscopy implies the existence of hydrogen-bonded carboxylate groups of (R-COO . . .H . . . OOC-R)(-) in the SA layer. Finally, the optical conductivity in the LB films can be compared with those of the superconductor crystal (BO)(2)ReO4(H2O) through the Drude optical parameters obtained from the IR spectra fitting.

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Documento generato il 13/07/20 alle ore 05:15:03