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The photoresponse of CdS/CuInSe/sub 2/ thin - film heterojunction solar cells

Journal Article · · IEEE Trans. Electron Devices; (United States)
The effect of light bias on the spectral current response and spectral capacitance characteristics of CdS/CuInSe/sub 2/ thin-film heterojunction solar cells has been investigated. Monochromatic light bias has been used to identify specific wavelength regions responsible for the spectral behavior seen under white light bias. Variations with light or voltage bias are consistent with the effect of the field on interface recombination in both high and low CdS resistivity devices. Devices with high CdS resistivity show spectrally dependent enhancement and quenching effects very similar to those reported for CdS/Cu/sub 2/S devices in which the space charge region was primarily in the CdS. It is concluded that in high CdS resistivity devices the junction behavior is controlled by the photoconductive CdS as has been established in CdS/Cu/sub 2/S cells. Low CdS resistivity CdS/CuInSe/sub 2/ devices show none of these effects.
Research Organization:
Institute of Energy Conversion, Univ. of Delaware, Newark, DE
OSTI ID:
6415502
Journal Information:
IEEE Trans. Electron Devices; (United States), Journal Name: IEEE Trans. Electron Devices; (United States) Vol. ED-31:5; ISSN IETDA
Country of Publication:
United States
Language:
English

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Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
CADMIUM SULFIDE SOLAR CELLS
COPPER SELENIDE SOLAR CELLS
DIRECT ENERGY CONVERTERS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
EQUIPMENT
FILMS
HETEROJUNCTIONS
INCIDENCE ANGLE
INDIUM SELENIDE SOLAR CELLS
JUNCTIONS
MONOCHROMATIC RADIATION
PHOTOCONDUCTIVITY
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RADIATIONS
RECOMBINATION
SEMICONDUCTOR JUNCTIONS
SOLAR CELLS
SOLAR EQUIPMENT
SPECTRAL RESPONSE
THIN FILMS