Role of Polycrystallinity in CdTe and CuInSe2 Photovoltaic Cells, Annual Subcontract Report, 1 April 1991 - 31 March 1992

Technical Report · Sun Nov 01 00:00:00 EST 1992

DOI:https://doi.org/10.2172/6744493· OSTI ID:6744493

Sites, J. R.

The limiting role of polycrystallinity in thin-film solar calls has been reduced somewhat during the past year, and efficiencies of both CdTe and CuInSe[sub 2] cells are approaching 15%. Quantitative separation of loss mechanisms shows that individual losses, with the exception of forward recombination current, can be made comparable to their single crystal counterparts. One general manifestation of the extraneous trapping states in that the voltage of all polycrystalline thin-film cells drifts upward by 10--50 mV following the onset of illumination.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 6744493
• Report Number(s): NREL/TP-451-5190; ON: DE93000045
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
CADMIUM TELLURIDE SOLAR CELLS
COPPER SELENIDE SOLAR CELLS
INDIUM SELENIDE SOLAR CELLS
EFFICIENCY
POLYCRYSTALS
PROGRESS REPORT
CRYSTALS
DIRECT ENERGY CONVERTERS
DOCUMENT TYPES
EQUIPMENT
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
SOLAR CELLS
SOLAR EQUIPMENT
photovoltaic cells
polycrystalline
thin films
cadmium telluride
copper indium diselenide
140501* - Solar Energy Conversion- Photovoltaic Conversion