NDLI: Spectral corrections based on optical air mass

Content Provider	IEEE Xplore Digital Library
Author	Emery, K. Delcueto, J. Zaaiman, W.
Copyright Year	2002
Description	Author affiliation: Nat. Renewable Energy Lab., Golden, CO, USA (Emery, K.; Delcueto, J.)
Abstract	The measurement of the photovoltaic (PV) performance with respect to reference conditions requires measuring the performance with respect to a reference spectrum. Procedures were developed in the mid 1980s to correct measurements for errors relating to the spectral irradiance of the light source being different from the standard and the responsivity of the irradiance detector being different from the device under test. In principle, these procedures are exact, but require the measurement of the spectral irradiance of the light source and responsivity of the test device. This is problematic for most facilities that measure module performance. It has been suggested that a polynomial fit of the short-circuit current (I/sub sc/) measured under natural sunlight divided by the total broadband irradiance as a function of air mass provides an accurate spectral correction factor. The polynomial correction factor is normalized to unity at an absolute air mass of 1.5. The polynomial correction factor is compared with the spectral correction factor for a variety of devices at two locations.
Sponsorship	IEEE Electron Devices Soc
Starting Page	1725
Ending Page	1728
File Size	240130
Page Count	4
File Format	PDF
ISBN	0780374711
ISSN	10608371
DOI	10.1109/PVSC.2002.1190954
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-05-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Detectors Polynomials Testing Current measurement Energy measurement Error correction Light sources Measurement standards Amorphous silicon Crystallization
Content Type	Text
Resource Type	Article

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