Determining the voltage dependence of the light generated current in CuInSe{sub 2}-based solar cells using I-V measurements made at different light intensities

Book · Wed Dec 31 00:00:00 EST 1997

OSTI ID:302531

Phillips, J E; Titus, J; Hofmann, D ^[1]

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1. Univ. of Delaware, Newark, DE (United States). Inst. of Energy Conversion

As the bandgap of CuInSe{sub 2} is increased by alloying with Ga or S, the loss in efficiency due to the decrease of light generated current with increasing voltage becomes important. The standard technique of quantifying this loss is to analyze spectral response measurements made as a function of applied voltage. Instead, it is shown how to determine the voltage dependence of the light generated current by an analysis of the current-voltage (I-V) measurements made at two different light intensities. By adding an I-V measurement at a third light intensity one can also determine if the analysis technique is valid.

• Sponsoring Organization: National Renewable Energy Lab., Golden, CO (United States)
• OSTI ID: 302531
• Report Number(s): CONF-970953-; TRN: IM9904%%319
• Resource Relation: Conference: 26. IEEE photovoltaic specialists conference, Anaheim, CA (United States), 29 Sep - 3 Oct 1997; Other Information: PBD: 1997; Related Information: Is Part Of Conference record of the twenty sixth IEEE photovoltaic specialists conference -- 1997; PB: 1477 p.
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
COPPER SELENIDE SOLAR CELLS
INDIUM SELENIDE SOLAR CELLS
PHOTOCURRENTS
ELECTRIC POTENTIAL
SPECTRAL RESPONSE
EXPERIMENTAL DATA