Preparation of the J-aggregate of cyanine dyes by means of the Langmuir-Blodgett technique

Hada, Hiroshi; Hanawa, Ryotaro; Haraguchi, Akira; Yonezawa, Yoshiro

doi:10.1021/j100250a002

Cited by 97 publications

(49 citation statements)

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“…Mixed monolayers of Ir-dye/DMPA, from a chloroformmethanol (3:1, v/v) solution in different molar ratios (1:0.75, 1:1, 1:2, 1:3, and 1:5), were prepared at the air-water interface by the co-spreading method [29]. Previously, the same monolayers were prepared by using pure chloroform as co-spreading solvent, which led to poor reproducible isotherms in all cases.…”

Section: Surface Pressure-area Isothermsmentioning

confidence: 99%

Molecular organization of a water-insoluble iridium(III) complex in mixed monolayers

Giner‐Casares

Pérez-Morales

Bolink

et al. 2007

Journal of Colloid and Interface Science

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Section: Surface Pressure-area Isothermsmentioning

confidence: 99%

Molecular organization of a water-insoluble iridium(III) complex in mixed monolayers

Giner‐Casares

Pérez-Morales

Bolink

et al. 2007

Journal of Colloid and Interface Science

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“…So there comes the question, what is taking place in the monomolecular state. To investigate the mixed monolayer state of FC12 and C12-TAC, the cospreading method (36)(37)(38)(39)(40) was employed for the same system. Typical examples of the mixed monolayer and cospreading of FC12/C12-TAC are shown in Fig.…”

Section: Ideality Of Mixingmentioning

confidence: 99%

Mixed Langmuir Monolayer of N-(1,1-Dihydroperfluorododecyl)-N,N,N-Trimethylammonium Chloride with Perfluorocarboxylic Acids

Rusdi

Moroi

Nakamura

et al. 2001

Journal of Colloid and Interface Science

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“…However, there have been few works on the sensitizing action of these dyes in Langmuir-Blodgett (LB)$ films. We have recently proposed new techniques to prepare the J-aggregate of cyanine dyes without long alkyl chains in monolayers; spreading method and adsorption method (Hada et al, 1985). The LB technique enables us to prepare the semiconductor : dye assembly available for photoelectrochemical studies (Memrning, 1974;Fromherz, 1978, 1980).…”

Section: Introductionmentioning

confidence: 99%

SPECTRAL SENSITIZATION OF SnO₂ THIN FILM ELECTRODE BY THE J‐AGGREGATE OF CYANINE DYES IN MONOLAYERS

Haraguchi

Yonezawa

Hanawa

1990

Photochem & Photobiology

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Abstract— Arachidic acid monolayers containing 5,6,5′,6′‐dibenzo‐I,I‐diethyl‐2,2′‐cyanine chloride were prepared by the spreading method and deposited on the SnO2 surface using the Langmuir‐Blodgett technique. The SnO2 : dye assembly prepared in this manner was used as a photoelectrode of the conventional electrochemical cell. A distinct J‐band was observed in the action spectra of sensitized anodic and cathodic photocurrents. Effects of calcium arachidate barriers inserted between dye layer and either SnO2 electrode (inside barrier) or electrolyte solution (outside barrier) on the photocurrent were examined. Although the inside barrier was effective in decreasing both anodic and cathodic photocurrents, the outside barrier did not suppress cathodic photocurrent. The following mechanism involving a molecular exciton of the J‐aggregate is proposed for the sensitized photocurrent. The anodic photocurrent is caused by hole trapping by some reducing agent and concomitant injection of the electron from molecular exciton to the conduction band of SnO2. Extraction of conduction‐band electron of SnO2 by molecular exciton and supplying to some oxidizing agent such as dissolved oxygen are responsible for the cathodic photocurrent.

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Preparation of the J-aggregate of cyanine dyes by means of the Langmuir-Blodgett technique

Cited by 97 publications

References 0 publications

Molecular organization of a water-insoluble iridium(III) complex in mixed monolayers

Molecular organization of a water-insoluble iridium(III) complex in mixed monolayers

Mixed Langmuir Monolayer of N-(1,1-Dihydroperfluorododecyl)-N,N,N-Trimethylammonium Chloride with Perfluorocarboxylic Acids

SPECTRAL SENSITIZATION OF SnO₂ THIN FILM ELECTRODE BY THE J‐AGGREGATE OF CYANINE DYES IN MONOLAYERS

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Preparation of the J-aggregate of cyanine dyes by means of the Langmuir-Blodgett technique

Cited by 97 publications

References 0 publications

Molecular organization of a water-insoluble iridium(III) complex in mixed monolayers

Molecular organization of a water-insoluble iridium(III) complex in mixed monolayers

Mixed Langmuir Monolayer of N-(1,1-Dihydroperfluorododecyl)-N,N,N-Trimethylammonium Chloride with Perfluorocarboxylic Acids

SPECTRAL SENSITIZATION OF SnO2 THIN FILM ELECTRODE BY THE J‐AGGREGATE OF CYANINE DYES IN MONOLAYERS

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SPECTRAL SENSITIZATION OF SnO₂ THIN FILM ELECTRODE BY THE J‐AGGREGATE OF CYANINE DYES IN MONOLAYERS