Effect of doping on performance of Fullerene: MEH-PPV solar cells

Physics

Solar cells harness solar energy, which is an abundant and renewable energy resource, and convert it directly into electrical energy by the photovoltaic effect. I prepared three samples of organic photovoltaic cell devices by using polymer and fullerene MEH-PPV/C 60 composites with different concentrations of fullerene and characterized by short- circuit current and open- circuit voltage, for polymer of weight 0.0549g with changing the concentrations of fullerene (0.304,0.302,0.300)g shows that the efficiency increases in the range with increasing concentration of fullerene C 60 of (0.076-0.083).This means that increasing concentration of fullerene, increases efficiency due to the increase of carriers concentrations as shown by theoretical relations since they acts as a donor and a acceptor.

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