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The Spectral Mismatch Factor

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The Spectral Mismatch Factor

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A reference solar cell is calibrated when its short-circuit current is known with respect to an internationally accepted set of test conditions called the Standard Test Conditions (1 Sun or 1000 W/m2 of AM1.5G and a cell temperature of 25˚C). The 5800 K plasma in a Xenon-arc lamp simulates the AM1.5G spectrum well, but a quartz tungsten halogen (QTH) lamp can also be adequate. In the (indoor) reference cell method for calibrating an unknown solar cell, a reference solar cell is used to adjust the intensity of a solar simulator until the short-circuit current produced by the reference cell is equivalent to its calibrated short-circuit current.

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