Light to electrical energy conversion at thin film metal oxide electrodes with ordered architectures

COLL 492

James M. Gardner, james.gardner@jhu.edu, Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218 and Gerald J. Meyer, meyer@jhu.edu, Department of Chemistry, John Hopkins University, 3400 North Charles Street, Baltimore, MD 21218.
Oxides of iron and other metals were prepared as thin film ordered macroporous electrodes (OMEs) through electrodeposition into colloidal crystalline templates on conducting SnO2 glass. The OMEs were utilized as photoanodes in photoelectrochemical cells in two and three electrode arrangements. Sustained photocurrents for the oxidation of water and alternative electron donors were observed with UV and visible light irradiation. Fundamental interfacial charge transfer properties were compared for the OMEs and analogous thin film sol-gel electrodes.
 

Interfacial Electron Transfer and Solar Energy Conversion: From Molecules to Nanomaterials
2:00 PM-5:00 PM, Thursday, April 10, 2008 Morial Convention Center -- Rm. 226, Oral

Division of Colloid & Surface Chemistry

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008