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ASTM E973

2016 Edition, July 1, 2016

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Standard Test Method for Determination of the Spectral Mismatch Parameter Between a Photovoltaic Device and a Photovoltaic Reference Cell



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Product Details:

  • Revision: 2016 Edition, July 1, 2016
  • Published Date: July 1, 2016
  • Status: Active, Most Current
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 5
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This test method provides a procedure for the determination of a spectral mismatch parameter used in performance testing of photovoltaic devices.

The spectral mismatch parameter is a measure of the error introduced in the testing of a photovoltaic device that is caused by the photovoltaic device under test and the photovoltaic reference cell having non-identical quantum efficiencies, as well as mismatch between the test light source and the reference spectral irradiance distribution to which the photovoltaic reference cell was calibrated.

Examples of reference spectral irradiance distributions are Tables E490 or G173.

The spectral mismatch parameter can be used to correct photovoltaic performance data for spectral mismatch error.

Temperature-dependent quantum efficiencies are used to quantify the effects of temperature differences between test conditions and reporting conditions.

This test method is intended for use with linear photovoltaic devices in which short-circuit is directly proportional to incident irradiance.

The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.