Comparison of primary and secondary solar cell calibrations

Results from calibrations to determine the power conversion efficiency of photovoltaic (PV) devices can differ if they are obtained using different calibration methods or different facilities. However, every calibration value has a measurement uncertainty. The consistency of the calibration results around the world is a major task of metrology institutes and calibration laboratories and is ensured by regular comparisons. However, one important parameter of performance measurements of PV devices is the short-circuit current under standard test conditions ISTC. Therefore, the ISTC of an ensemble of reference solar cells were calibrated at the Joint Research Centre (JRC), at the Physikalisch-Technische Bundesanstalt (PTB) and at Centre for Renewable Energy Systems Technology (CREST) of Loughborough University (LU, United Kingdom). The determined ISTC of CREST and PTB are consistent within the uncertainties. Additionally, the spectral responsivities of the reference solar cells were determined at the facilities of JRC and PTB and the results discussed.

FEY Thomas;  KROEGER Ingo;  WINTER Stefan;  BETTS Thomas R.;  ZAAIMAN Willem;  PAVANELLO Diego;  MUELLEJANS Harald; 

2017-11-16

WIP GmbH & Co-KG

JRC106563

3-936338-47-7,   

2196-100X,   

https://publications.jrc.ec.europa.eu/repository/handle/JRC106563,   

10.4229/EUPVSEC20172017-5BV.4.5,