Thin film cadmium chalcogenide/aqueous polysulfide photoelectrochemical solar cells with in-situ tin storage
A photoelectrical system is presented which converts solar energy to both electrical and electrochemically stored energy. A decrease in cell illumination initiates spontaneous reconversion of electrochemical to electrical energy, providing nearly constant (light insensitive) electrical power for an external applied load. The cell contains a thin film CD(Se,Te) photoelectrode and a thin film CoS counterelectrode immersed in an aqueous polysulfide electrolyte separated by cation selective membrane from a tin electrode immersed in an aqueous sulfide electrolyte (Sn/S/sup =/). Cyclic voltammetry indicates that unlike tin/alkali systems, the Sn/S/sup =/ half-cell does not undergo passivation at storage potentials.
- Research Organization:
- Dept. of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139
- OSTI ID:
- 6306791
- Journal Information:
- J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 135:5; ISSN JESOA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
36 MATERIALS SCIENCE
360603 -- Materials-- Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400 -- Electrochemistry
400500 -- Photochemistry
AQUEOUS SOLUTIONS
CADMIUM COMPOUNDS
CADMIUM SELENIDES
CADMIUM TELLURIDES
CHALCOGENIDES
CHEMISTRY
COBALT COMPOUNDS
COBALT SULFIDES
DISPERSIONS
EFFICIENCY
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTRODES
ELECTROLYTES
ELEMENTS
ENERGY EFFICIENCY
ENERGY LOSSES
EQUIPMENT
FIELD TESTS
FILMS
LOSSES
METALS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PERFORMANCE
PHOTOCHEMISTRY
PHOTOELECTROCHEMICAL CELLS
PHYSICAL PROPERTIES
POLYETHYLENES
POLYMERS
POLYOLEFINS
SELENIDES
SELENIUM COMPOUNDS
SOLAR EQUIPMENT
SOLUTIONS
SULFIDES
SULFUR COMPOUNDS
TELLURIDES
TELLURIUM COMPOUNDS
TESTING
THIN FILMS
TIN
TRANSITION ELEMENT COMPOUNDS
VOLTAMETRY