Improvement of photovoltages in organic dye-sensitized solar cells by Li intercalation in particulate TiO2 electrodes

Photovoltages of nanoporous TiO2 solar cells sensitized by organic dyes are found to be improved by up to 200mV with a negligible decrease in photocurrent by treating TiO2 electrodes with intercalation of Li. The enhancement in photovoltage is explained in terms of the formation of a dipole layer du...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2007-03, Vol.90 (10)
Main Authors: Harima, Y., Kawabuchi, K., Kajihara, S., Ishii, A., Ooyama, Y., Takeda, K.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Photovoltages of nanoporous TiO2 solar cells sensitized by organic dyes are found to be improved by up to 200mV with a negligible decrease in photocurrent by treating TiO2 electrodes with intercalation of Li. The enhancement in photovoltage is explained in terms of the formation of a dipole layer due to adsorption of Li ions on the TiO2 surface generated by the reaction of intercalated Li atoms with moisture in air.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2711659