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设计、合成并表征了含有p-n(供电子-吸电子)单元的苝聚酰亚胺,并研究了其作为敏化电极材料的光电池的性能.产物为非晶态.从电子谱中计算出其能带带宽为2.19eV,用电化学循环伏安法中计算得到其电子亲和势(Ea,最低空轨道能级)为-3.94eV,离子势(IP,最高占据轨道能级的绝对值)为6.13eV,其能级与二氧化钛的能级相匹配,对二氧化钛有较好的敏化作用.光电池的光电流作用谱(IPCE)与紫外电子谱十分相似,来源于相同的分子结构吸收.光电压与光强之间有指数的关系.用苝聚酰亚胺为敏化剂的光电池的光电转换效率为0.9%.

参考文献

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