Experimental Study of Light-Induced Degradation in a-Si:H Thin-Film Modules under Different Climatic Conditions

  1. Esteban Sánchez 1
  2. Javier Izard 2
  3. Marta Domínguez 2
  1. 1 Universidad de Salamanca
    info

    Universidad de Salamanca

    Salamanca, España

    ROR https://ror.org/02f40zc51

  2. 2 Soliker. El Navazo, Ctra. de Candelario Km 1,8 E-37700 Béjar (Salamanca), Spain
Actas:
EU PVSEC Proceedings

ISBN: 3-936338-28-0

Año de publicación: 2012

Páginas: 2503-2506

Congreso: 27th European Photovoltaic Solar Energy Conference and Exhibition

Tipo: Aportación congreso

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Resumen

The light induced degradation of amorphous silicon photovoltaic modules is a big issue for manufacturers of this technology. The Staebler-Wronksi and annealing effects describe this reversible process causing the degradation of power that results in a loss of efficiency. Under outdoor conditions the situation is more complex and there are factors that determine the final extent of the degradation. This work is focused in the effect of climatic conditions on the degradation process. Four batches of industrially manufactured a-Si:H photovoltaic modules with different sets of process parameters for the deposition of layers have been deployed in the four seasons of the year for an extensive study of the LID under different climatic conditions. Through this testing, the extent of the LID caused by Staebler-Wronski effect is characterized by means of the characteristic parameters of the modules.

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