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Mechanical Degradation Analysis of an Amorphous Silicon Solar Module

Author

Listed:
  • Gilbert Osayemwenre

    (Fort Hare Institute of Technology (FHIT), University of Fort Hare, Private Bag X1314, Alice 5700, South Africa)

  • Edson Meyer

    (Fort Hare Institute of Technology (FHIT), University of Fort Hare, Private Bag X1314, Alice 5700, South Africa)

Abstract

This work examines the degradation of photovoltaic modules. It assesses the structural defects of amorphous silicon solar cells, which result from mechanical stress at nanoscale level. Firstly, it analyses the interface morphology, deformation, and internal delamination of a single junction amorphous silicon solar module. Secondly, it explores the interface deformation of the layers of the defective region of the module with some statistical tools including root mean root (RSM) and arithmetic mean (Rq). It used the aforementioned tools to demonstrate the effect of microstructural defects on the mechanical behaviour of the entire layers of the module. The study established that the defect observed in the module, emanated from long-term degradation of the a-Si solar cells after years of exposure to various light and temperature conditions. It tested the mechanism of mechanical degradation and its effect on the reliability and stability of the defective and non-defective regions of the module with adhesion force characterisation.

Suggested Citation

  • Gilbert Osayemwenre & Edson Meyer, 2020. "Mechanical Degradation Analysis of an Amorphous Silicon Solar Module," Energies, MDPI, vol. 13(16), pages 1-11, August.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:16:p:4126-:d:396869
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    References listed on IDEAS

    as
    1. Koppelaar, R.H.E.M., 2017. "Solar-PV energy payback and net energy: Meta-assessment of study quality, reproducibility, and results harmonization," Renewable and Sustainable Energy Reviews, Elsevier, vol. 72(C), pages 1241-1255.
    2. Atse Louwen & Wilfried G. J. H. M. van Sark & André P. C. Faaij & Ruud E. I. Schropp, 2016. "Re-assessment of net energy production and greenhouse gas emissions avoidance after 40 years of photovoltaics development," Nature Communications, Nature, vol. 7(1), pages 1-9, December.
    3. Ogbomo, Osarumen O. & Amalu, Emeka H. & Ekere, N.N. & Olagbegi, P.O., 2017. "A review of photovoltaic module technologies for increased performance in tropical climate," Renewable and Sustainable Energy Reviews, Elsevier, vol. 75(C), pages 1225-1238.
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