Role of Polycrystallinity in CdTe and CuInSe2 Photovoltaic Cells, Annual Subcontract Report, 1 April 1990 - 31 March 1991

Technical Report · Fri Nov 01 00:00:00 EST 1991

DOI:https://doi.org/10.2172/5908731· OSTI ID:5908731

Sites, J. R.

The polycrystalline nature of thin-film CdTe and CuInSe{sub 2} solar cells continues to be a major factor in several individual losses that limit overall cell efficiency. This report describes progress in the quantitative separation of these losses, including both measurement and analysis procedures. It also applies these techniques to several individual cells to help document the overall progress with CdTe and CuInSe{sub 2} cells. Notably, CdTe cells from Photon Energy have reduced window photocurrent losses to 1 mA/Cm{sup 2}; those from the University of South Florida have achieved a maximum power voltage of 693 mV; and CuInSe{sub 2} cells from International Solar Electric Technology have shown a hole density as high as 7 {times} 10{sup 16} cm{sup {minus}3}, implying a significant reduction in compensation. 9 refs.

• 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: 5908731
• Report Number(s): NREl/TP-214-4468; ON: DE92001168
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
SOLAR CELLS
EFFICIENCY
ANNEALING
CADMIUM TELLURIDE SOLAR CELLS
COMPARATIVE EVALUATIONS
COPPER SELENIDE SOLAR CELLS
INDIUM SELENIDE SOLAR CELLS
PHOTOCONDUCTIVITY
POLYCRYSTALS
PROGRESS REPORT
QUANTUM EFFICIENCY
THIN FILMS
CRYSTALS
DIRECT ENERGY CONVERTERS
DOCUMENT TYPES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EQUIPMENT
EVALUATION
FILMS
HEAT TREATMENTS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SOLAR EQUIPMENT
photovoltaic cells
polycrystalline thin films
cadmium telluride
copper indium diselenide
140501* - Solar Energy Conversion- Photovoltaic Conversion