Characterization of a-Si: H Solar Cell Modules on Plastic Substrates by High Resolution LBIC Technique

M. Fernandes, Y. Vygranenko, M. Vieira, A. Sazonov, R. Yang, A. Khosropour

Research output: Contribution to journalConference articlepeer-review


This article reports on characterization of hydrogenated amorphous silicon (a-Si:H) photovoltaic modules fabricated on 100 μm thick PEN plastic films. Experimental results show that the shunt leakage is one of the factors reducing the device performance. Current-voltage characteristics of individual a-Si:H p-i-n cells were analysed to estimate a variation of shunt resistances. A SPICE model of the a-Si:H p-i-n cell with local shunt leakage was also developed to analyse the impact of leakage currents on the device performance. Using the LBIC technique, the presence of multiple shunts in the cell was detected. They are attributed to surface defects in plastic foils, which are thermally induced during the device fabrication.

Original languageEnglish
Pages (from-to)93-98
Number of pages6
JournalEnergy Procedia
Publication statusPublished - 1 Jan 2015
EventE-MRS Spring Meeting 2015 Symposium C - Advanced inorganic materials and structures for photovoltaics, 2015 - Lille, France
Duration: 11 May 201515 May 2015


  • amorhous silicon
  • shunt leakage
  • thin-film solar cells


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