IEC-63109 › Photovoltaic (PV) modules and cells - Measurement of diode ideality factor by quantitative analysis of electroluminescence images
IEC-63109
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EDITION 1.0
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CURRENT
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IEC TS 63109:2022 specifies a method to measure the diode ideality factor of photovoltaic cells and modules by quantitative analysis of electroluminescence (EL) images. This document provides a definition of the term diode ideality factor n, as the inverse of increment ratio of natural logarithm of current as a function of applied voltage, which is related to the fill factor FF, and is useful as an effective indicator to represent the output efficiency of photovoltaic cells and modules with the other key parameters open circuit voltage Voc and short circuit current Isc.
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Document Number
IEC/TS 63109 Ed. 1.0 en:2022
Revision Level
EDITION 1.0
Status
Current
Publication Date
March 1, 2022
Committee Number
82