A Study of Photoelectrochemical Properties of Langmuir-Blodgett Films Containing Cyanine Dye on SnO₂ Electrode

In this paper, We report the monolayer assembly was obtained by depositing a mixed layer of dye, methylarachidate （AME）, hexadecane （HD）, and arachidic acid (C₂₀) on SnO₂ substrae. The mixed L-B films of dye, AME, HD and C₂₀ on SnO₂ have been studied by means of absorption spectra and photoelectrochemical technique.
The dye molecules in monolayers are easily formed J-aggregate at high surface pressure, compare with low surface pressure.
We can see the intensity of photocurrent is enhanced by formation of J-aggregation.