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Absolute spectral responsivity measurements of solar cells by a hybrid optical technique

Published

Author(s)

Behrang H. Hamadani, John F. Roller, Brian P. Dougherty, Fiona Persaud, Howard W. Yoon

Abstract

An irradiance mode, absolute differential spectral response measurement system for solar cells is presented. The system is based on combining the monochromator-based approach of determining the power mode spectral responsivity of cells with an LED-based measurement to construct a curve representing the light-overfilled absolute spectral response of the entire cell. This curve can be used to predict the short circuit current (Isc) of the cell under the AM 1.5 standard reference spectrum. The measurement system is SI-traceable via detectors with primary calibrations linked to the NIST absolute cryogenic radiometer. An uncertainty analysis of the methodology places the relative uncertainty of the calculated Isc at better than ± 0.8 %.
Citation
Applied Optics
Volume
52
Issue
21

Keywords

Solar cells, PV, Photovoltaic, Measurement, Characterization, Spectral response, optical
Created July 15, 2013, Updated November 10, 2018