Ultraviolet fluorescence of ethylene-vinyl acetate in photovoltaic modules as estimation tool for yellowing and power loss
| Autor: | Michael Siebert, Marc Köntges, Susanne Blankemeyer, Arnaud Morlier, Iris Kunze |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry Photovoltaic system Ethylene-vinyl acetate 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology medicine.disease_cause 01 natural sciences Temperature measurement Fluorescence 0104 chemical sciences chemistry.chemical_compound chemistry medicine Degradation (geology) Optoelectronics 0210 nano-technology business Current density Ultraviolet Visible spectrum |
| Zdroj: | 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC). |
| Popis: | The potential of ultraviolet (UV) fluorescence as a field technique for photovoltaic module defect detection was demonstrated recently. Here we study the formation rate of the fluorophores in module encapsulating material under UV illumination. We observe a correlation between the decrease in visible light transmission of the encapsulant and UV fluorescence intensity. This correlation allows estimating the yellowing-induced power loss via fluorescence measurements. |
| Databáze: | OpenAIRE |
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