以大孔径的介孔炭(MC)为催化层材料经低温热处理构建出炭对电极,着重探讨了在炭浆料中添加Triton X100对其组装的染料敏化太阳电池(DSCs)光电性能的影响,并引入分形维数(DF)用于定量评估炭膜形貌的差异.结果表明,当炭浆料中Triton X100的含量增加到0.1 mL(相应MC含量为0.6g)时,DSCs的光电转换效率增加至5.65％,其值比活性炭对电极DSCs高46.5％,且达到Pt对电极DSCs的95.4％.Triton X100改性的介孔炭对电极的高性能归功于高品质的炭膜和介孔炭本身合理的孔结构(如大尺寸孔径和大比表面积等).相对于未添加Triton X100的纯介孔炭对电极,Triton X100改性的介孔炭对电极具有分布更均匀的炭膜和更小的分形维数,是对电极欧姆串阻减小及相应器件效率改善的一个重要因素.
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