A study of solar cell stability by use Coumarin 500 dye polymer

Abstract

in this work two dye polymer solar cells V-I characteristics were studied their stability .the Voltage-Current characteristics were studied for about one month ,the experimental results after (1,10,20,30) days was found that the open voltage current does not change while open circuit voltage changes slightly . this means that the cells does not affected by environment and some water may evaporate .evaporation is responsible for current decrease