A polycrystalline thin-film photovoltaic material (sometimes incorporating gallium (CIGS) and/or sulfur)
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Crystalline Silicon
A type of photovoltaic cell made from a slice of single-crystal silicon or polycrystalline silicon.
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Current
The flow of electric charge in a conductor between two points having a difference in potential (voltage). Measured in Amperes.
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Czochralski Process
A method of growing large size, high quality semiconductor crystal by slowly lifting a seed crystal from a molten bath of the material under careful cooling conditions.
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Depth of Discharge
The percent of the rated battery capacity that has been withdrawn.
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Diffuse Radiation
Radiation received from the sun after reflection and scattering by the atmosphere and ground.
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Diode
An electronic device that allows current to flow in one direction only. See blocking diode and bypass diode.
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Direct Beam Radiation
Radiation received by direct solar rays. Measured by a pyrheliometer with a solar aperture of 5.7° to transcribe the solar disc.
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Doping
The addition of dopants to a semiconductor.
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Efficiency
The ratio of output power (or energy) to input power (or energy). Expressed in percent.
