Nondestructive characterization of polymeric components of silicon solar modules by near-infrared absorption spectroscopy (NIRA)

Stroyuk O, Buerhop-Lutz C, Vetter A, Hauch J, Brabec C (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Solar Energy Materials and Solar Cells Elsevier

Book Volume: 216

Article Number: 110702

DOI: 10.1016/j.solmat.2020.110702

Abstract

Degradation of the encapsulation of solar modules is a crucial problem and, accordingly, tools for assessing and understanding the according degradation is an important research topic. Here, we suggest near-infrared absorption spectroscopy (NIRA) as a tool that has a strong potential to determine non-invasively the composition of encapsulant and backsheet in typical commercial solar modules. Correct polymer identification by NIRA was supported by Raman spectral microscopy of the backsheet air sides and cross sections, with a hundred solar modules of different manufacturers analyzed by both spectroscopic methods. Furthermore, a specific NIRA measurement regime of the ethylene vinyl acetate encapsulant is presented, which potentially allows to probe the composition of the encapsulant non-destructively under lab conditions but also on silicon solar modules in the field installed outdoors. The present report shows NIRA to be a powerful method for non-destructive analysis of backsheets and encapsulants of photovoltaic silicon modules.

Authors with CRIS profile

Andreas Vetter Institute Materials for Electronics and Energy Technology (i-MEET) Jens Hauch Institute Materials for Electronics and Energy Technology (i-MEET) Christoph Brabec Institute Materials for Electronics and Energy Technology (i-MEET)

Involved external institutions

Forschungszentrum Jülich / Research Centre Jülich (FZJ) DE Germany (DE)

How to cite

APA:

Stroyuk, O., Buerhop-Lutz, C., Vetter, A., Hauch, J., & Brabec, C. (2020). Nondestructive characterization of polymeric components of silicon solar modules by near-infrared absorption spectroscopy (NIRA). Solar Energy Materials and Solar Cells, 216. https://dx.doi.org/10.1016/j.solmat.2020.110702

MLA:

Stroyuk, Oleksandr, et al. "Nondestructive characterization of polymeric components of silicon solar modules by near-infrared absorption spectroscopy (NIRA)." Solar Energy Materials and Solar Cells 216 (2020).

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