Abstract:
In this work the effect of changing the anode of polymer solar cell on their performance was experimentally investigated .The cells were fabricated from ITO which act as a cathode beside MEH PPV ,Ecrchrom Black T and Rohadamin B dyer . The anodes which c are AL, GL ,AU with atomic number 13 , 47 and 79 were used . It was found that the efficiency of the solar cell of AL, GL ,AU electrode for Ecrchrom dye are 1.66, 1.59 , and 1.58 Respectively the efficiency for Rohadamin , Ecrchrom Black T dye are 1.49, 1.48 and 1.46 respectively these results shows clearly that the efficiency increases as the atomic number decreases this conforms with the fact that energy gap increase with the atomic number.
Solar cells made from dye sensitized solar cells made from: Ecrchrom Black T, DDTTC, Rohadamin B,and Coumarin 500,with Al and TTO electrodes were fabricated. The energy gab of these dyes were found using UV Spectrometer. The energy gap for: Ecrchrom Black T, DDTTC, Rohadamin B, and Coumarin 500; were found 2.16 eV ,2.20 eV ,3.27 eV and 3,60 respectively .
The V- I characteristics for these cells and their performance were also found. The efficiency: Ecrchrom Black T, DDTTC, Rohadamin B, Coumarin 500 were found 1.66,1.62, 1.49 and 1.31. It is realized that; the efficiency increases when energy gab decreases.
