Dynamic aspects of the dye-sensitized photoconductivity of semiconductors. Progress report, April 1, 1981-May 31, 1985

Technical Report · Thu May 01 04:00:00 EDT 1986

OSTI ID:5681870

Ponte Goncalves, A M

The dynamics of the phenomena which determine the efficiency of dye-sensitized semiconductor/electrolyte photoelectrochemical cells were studied. Direct fluorescence lifetime measurements were undertaken to explore the competition between the primary event, injection, and other processes which shorten the lifetime of the dye excited state. Fluorescence quantum yield experiments served to complement the information obtained by direct lifetime measurements. A subnanosecond-resolved transient absorption spectrophotometer was developed for the examination of processes, such as trapping and recombination, which compete with the escape of the injected electron into the bulk of the semiconductor. 6 refs.

• Research Organization: Temple Univ., Philadelphia, PA (USA)
• DOE Contract Number: AC02-81ER10881
• OSTI ID: 5681870
• Report Number(s): DOE/ER/10881-4; ON: DE86010892
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
400500 -- Photochemistry
ADSORPTION
CHALCOGENIDES
DYES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
EQUIPMENT
FLUORESCENCE
GLASS
INDIUM COMPOUNDS
INDIUM OXIDES
LUMINESCENCE
MATERIALS
N-TYPE CONDUCTORS
OXIDES
OXYGEN COMPOUNDS
PHOTOCONDUCTIVITY
PHOTOELECTROCHEMICAL CELLS
PHYSICAL PROPERTIES
SEMICONDUCTOR MATERIALS
SOLAR EQUIPMENT
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TIN COMPOUNDS
TIN OXIDES