Semiconductor photosensitization with an organometallic. Final report

Technical Report · Wed Aug 01 04:00:00 EDT 1984

OSTI ID:6436821

Walsh, F

The specific objectives of the Phase I research program were to prepare and test photocathodes with tetraazaannulenes (TAAs) as photosensitizers, to compare the performance of various TAAs in this application, and to demonstrate that a multi-electrode solar cell with TAA-sensitized photocathodes is technically feasible. The photoresponse of n-type SnO2-coated cathodes when covered with a thin layer of a TAA was evaluated. Cell-performance data were obtained in an acidic Fe(+2)/Fe(+3) electrolyte. A direct relationship between cell performance and the first oxidation of half-wave potential of the TAAs tested was identified. The TAA was shown to be a p-type semiconductor capable of being the sole photoactive specie on a cathode in such stacked-electrode cells with an unoptimized power level of 5 uw/sq. cm.

• Research Organization: Tracer Technologies, Inc., Newton, MA (USA)
• OSTI ID: 6436821
• Report Number(s): PB-87-181442/XAB
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
30 DIRECT ENERGY CONVERSION
300800 -- Direct Energy Conversion-- Miscellaneous Converters
CATHODES
CHALCOGENIDES
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELECTRODES
EQUIPMENT
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOCATHODES
PHOTOELECTRIC CELLS
PHOTOELECTROCHEMICAL CELLS
PHOTOSENSITIVITY
PHOTOVOLTAIC CELLS
SENSITIVITY
SOLAR CELLS
SOLAR EQUIPMENT
TIN COMPOUNDS
TIN OXIDES