以Zn(NO3)2和曙红的混合溶液为沉积液,采用阴极电化学沉积法在ITO导电玻璃上制备了纳米多孔ZnO/曙红复合膜.考察了电化学预处理过程和曙红浓度对薄膜晶体结构、微观形貌和光学性能的影响.结果表明,引入短时间的电化学预处理过程能提高复合薄膜中ZnO的结晶质量,并诱导ZnO沿c轴定向生长.随着电沉积液中染料浓度的增大,所得薄膜的结晶质量下降,薄膜由六角晶颗粒逐渐向纳米多孔结构转变.当沉积液中曙红浓度为50μmol/L 时所得复合薄膜具有最大膜厚,装载的曙红量最高.以该复合膜为光阳极制作了太阳能电池原型器件,其开路电压为0.49V,短路电流为0.67mA/cm2,总光电转换效率为0.105%.
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