Consideration on Na diffusion and recovery phenomena in potential-induced degradation for crystalline Si photovoltaic modules

@inproceedings{Masuda2016ConsiderationON,
  title={Consideration on Na diffusion and recovery phenomena in potential-induced degradation for crystalline Si photovoltaic modules},
  author={Atsushi Masuda and Yukiko Hara and Sachiko Jonai},
  year={2016}
}
Potential-induced degradation (PID), which brings about a large rapid decrease in output power has been observed in megawatt-scale photovoltaic power plants. Na diffusion from a cover glass to a cell through an encapsulant is possibly the direct origin of PID for p-type crystalline Si photovoltaic modules. On the other hand, PID is suppressed when using an ionomer encapsulant instead of a conventional ethylene vinyl acetate encapsulant. Some researchers consider that the reason is the… CONTINUE READING