Hot-electron luminescence in aged electrodeposited CdSe liquid-junction solar cell
We have utilized Raman spectroscopy and scanning Auger electron spectroscopy (AES) to probe the surface of polycrystalline, electrodeposited CdSe photoelectrodes which have been aged in a polysulfide electrolyte under illumination and in darkness. We have observed characteristic ''hot-electron'' luminescence at multiples of ..omega../sub LO/ (CdS) = 305 cm/sup -1/ in the light-aged electrode, indicating that a surface layer of CdS has been formed. AES profiling shows that extensive substitution of S for Se has occurred, in the light-aged electrode alone, to a depth of approx.600 A. Measurements at 300 K suggest that Raman scattering can be a useful, in situ, contactless, nondestructive probe of CdS formation.
- Research Organization:
- Department of Physics, Brooklyn College of CUNY, Brooklyn, New York 11210
- OSTI ID:
- 6669176
- Journal Information:
- Appl. Phys. Lett.; (United States), Vol. 42:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CADMIUM SELENIDE SOLAR CELLS
AGING
ELECTRODEPOSITION
LUMINESCENCE
AUGER ELECTRON SPECTROSCOPY
ELECTRODES
ELECTROLYTES
ELECTRON SCANNING
ELECTRON TEMPERATURE
JUNCTIONS
LIQUIDS
MEDIUM TEMPERATURE
POLYCRYSTALS
RAMAN SPECTRA
SELENIUM
SPATIAL DISTRIBUTION
SULFIDES
THICKNESS
CHALCOGENIDES
CRYSTALS
DEPOSITION
DIMENSIONS
DIRECT ENERGY CONVERTERS
DISTRIBUTION
ELECTROLYSIS
ELECTRON SPECTROSCOPY
ELEMENTS
EQUIPMENT
FLUIDS
LYSIS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
SEMIMETALS
SOLAR CELLS
SOLAR EQUIPMENT
SPECTRA
SPECTROSCOPY
SULFUR COMPOUNDS
SURFACE COATING
140501* - Solar Energy Conversion- Photovoltaic Conversion