A Sharp Photocurrent Enhancement in Photoelectrochemical Cells with a Photocathode Sensitized by Dye Films of Rhodamine-C18and Methylviolet-C18Prepared by Langmuir-Blodgett Techniques

Autor: Fernando, Annesly Nandana, Kitagawa, Akio, Suzuki, Masakuni, Takahashi, Kohshin, Komura, Teruhisa
Zdroj: Japanese Journal of Applied Physics; November 1995, Vol. 34 Issue: 11 p6100-6100, 1p
Abstrakt: It was found that the photocurrent quantum efficiency of photoelectrochemical cells with p-CuSCN photo-cathode sensitized with double dye layers such as Rhodamine- C18and Methylviolet- C18is greatly enhanced (?15%), when the double dye system is prepared using Langmuir-Blodgett (LB) technique. An ordered arrangement of dye molecules in LB films provides a suitable condition to transfer photogenerated holes and electrons between two dye layers, so that photogenerated holes upon excitation can transfer effectively into the valence band of p-CuSCN.
Databáze: Supplemental Index