Spectrally resolved measurements of the solar irradiation are needed to assess the outdoor performance of concentrator photovoltaic (CPV) technologies that employ GaAs based multi-junction cells. One coarse technique for obtaining such data – without the need to operate a full spectroradiometer system – is to measure the current output of different junctions of multi-junction cells. Specially prepared component or ‘isotype’ cells having the same optical characteristic as the whole multi-junction device but with the electrical characteristics of one single sub-cell are commonly used for this purpose. Although this provides a convenient way to measure the solar spectrum appropriate for CPV technologies that use such cells, the present literature lacks detailed comparisons of these sensors against high quality spectroradiometer systems[1]. In this work we evaluate two different sets of isotype sensors and compare with data from an OL750 spectroradiometer.
NORTON Matthew;
GALLEANO Roberto;
SIEFER Gerald;
STEINER Marc;
KENNY Robert;
ZAAIMAN Willem;
2015-12-10
AIP Publishing
JRC92681
http://dx.doi.org/10.1063/1.4931529,
https://publications.jrc.ec.europa.eu/repository/handle/JRC92681,
10.1063/1.4931529,
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