Conference paper
Interlaboratory comparison of methodologies for measuring the angle of incidence dependence of solar cells
Photovoltaic Materials and Systems, Department of Photonics Engineering, Technical University of Denmark1
Fraunhofer Institute for Solar Energy Systems2
Silicon Microtechnology, Department of Micro- and Nanotechnology, Technical University of Denmark3
Department of Micro- and Nanotechnology, Technical University of Denmark4
Department of Photonics Engineering, Technical University of Denmark5
Diode Lasers and LED Systems, Department of Photonics Engineering, Technical University of Denmark6
Physikalisch-Technische Bundesanstalt7
Energy Research Centre of the Netherlands8
Loughborough University9
National Renewable Energy Center10
CIEMAT11
University of Applied Sciences and Arts of Southern Switzerland12
...and 2 moreThe aim of this work is to compare angle of incidence (AOI) measurement setups for solar cells between laboratories with such capability. For the first time, we compare relative light transmission measurements among eight laboratories, whose measurement techniques include indoor and outdoor methods.
We present the relative transmission measurements on three 156 mm x 156 mm crystalline-Si (c-Si) samples with different surface textures. The measurements are compared using the expanded uncertainties provided by each laboratory. Five of the eight labs showed an agreement better than ±2% to the weighted mean between AOIs from -75° to 70°.
At AOIs of ±80° and ±85°, the same five labs showed a worst case deviation to the weighted mean of -3% to 5% and 0% to 18%, respectively. When measurement uncertainty is considered, the results show that measurements at the highest incidence angle of ±85° are problematic, as measurements from four out of the six labs reporting uncertainty were found non-comparable within their stated uncertainties.
At 85° AOI a high to low range of up to 75% was observed between all eight laboratories.
Language: | English |
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Year: | 2018 |
Proceedings: | 35th European Photovoltaic Solar Energy Conference and Exhibition |
ISBN: | 3936338507 and 9783936338508 |
Types: | Conference paper |
DOI: | 10.4229/35thEUPVSEC20182018-5BO.10.4 |
ORCIDs: | Riedel, Nicholas , Santamaria Lancia, Adrian Alejo , Thorsteinsson, Sune , Poulsen, Peter Behrensdorff , Iandolo, Beniamino , Davidsen, Rasmus Schmidt , Thorseth, Anders , Dam-Hansen, Carsten and Benatto, Gisele Alves dos Reis |