Characterisation and impact of non-uniformity on multi-junction solar cells (MJSC) caused by concentrator optics
| Autor: | Eduardo F. Fernández, Jose M. Saura, Daniel Chemisana, Florencia Almonacid |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Repositorio Abierto de la UdL Universitad de Lleida |
| ISSN: | 0094-243X |
| DOI: | 10.1063/1.5124174 |
| Popis: | In this work, it has been developed a method to generate non-homogeneous light patterns on multi-junction solar cells. These patterns have been generated modifying the distance between the CPV receiver and the primary optics, which is based on a Fresnel lens. In order to diminish the impact of other variables, the incident spectrum, laboratory temperature and effective concentration have been kept constant: SMRtop-mid = 1 ± 0.02, 25 ± 0.5ºC and 380 ± 3 suns, respectively. The light patterns on the top and middle subcells are measured using a CCD camera and band-pass filters. Results show that the electrical performance of the solar cells depends on the spatial and spectral profiles. The present work introduces a procedure to characterise and evaluate the impact of non-uniformities on the output of multi-junction solar cells. Nevertheless, this work is not intended to predict the actual output of the cell as a function of the light profiles, but to provide indications for possible underlying mechanisms. This work is partially funded by European Regional Development Fund (ERDF) and Spanish Economy Ministry, grant number ENE2016-78251-R |
| Databáze: | OpenAIRE |
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