以P3HT(poly(3-hexylthiophene))为电子给体材料(D),PCBM([6,6]-pheny1-C61-butyricadd methyl ester)为电子受体材料(A),制成了不同比例的共混体系太阳电池.从不同比例的给体与受体材料共混体系的紫外可见光谱(UV-vis)、光荧光谱(PL)、太阳电池的光敏(PS)图及器件的光、暗导J-V图方面,详细分析了不同比例的给体与受体材料对器件性能影响.得出了当给体与受体材料质量比例为1:1时,太阳电池的性能最好.其光电池在100mW/cm2强度光照下,其开路电压Voc为0.59 V,短路电流密度Jsc为5.71 mA/cm2,填充因子FF为55.7%,能量转换效率η为1.88%.
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