Sensitization effect by porphyrin in polythiophene/perylene dye two-layer solar cells
Sensitization effect by porphyrin in polythiophene/perylene dye two-layer solar cells
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聚噻吩/苝染料双层太阳能电池中卟啉的敏化效应
DOI：
10.1016/s0927-0248(01)00221-5
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
K. Murata
中科院分区：
文献类型：
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作者：
Kohshin Takahashi;Ikuo Nakajima;K. Imoto;T. Yamaguchi;Teruhisa Komura;K. Murata
观察到增强的光电流的两层电池组成的区域规则的聚噻吩（PTh）共混与无金属卟啉（H2 tpp）和？萘嵌苯四羧酸衍生物（PV），相比，PTh（没有H2 tpp）/PV两层电池。这是因为光激发的H2 tpp分子有效地将空穴转移到PTh分子，然后在H2 tpp分子中产生的电子在混合固体/PV界面处快速转移到PV分子。在具有混合固体的两层光电池中，H2 tpp表现为敏化剂，PTh和PV固体作为载流子传输层，并且混合固体/PV界面作为电荷分离位点。在6μWcm− 2单色光照射下，PTh（含H2 tpp）/PV双层电池的能量转换效率达到η=2.9%。
An enhanced photocurrent was observed for a two-layer cell consisting of a regioregular polythiophene (PTh) blended with metal-free porphyrin (H2tpp) and a perylene tetracarboxylic derivative (PV), compared to a PTh (without H2tpp)/PV two-layer cell. This is because photoexcited H2tpp molecules efficiently transfer holes to PTh molecules and then produced electrons in H2tpp molecules rapidly transfer to PV molecules at the mixed solid/PV interface. In the two-layer photocell with the mixed solid, H2tpp behaves as a sensitizer, PTh and PV solids as carrier transport layers, and the mixed solid/PV interface as a charge separation site. Power conversion efficiency attained to η=2.9% for the PTh (with H2tpp)/PV two-layer cell under monochromatic light with 6μWcm−2intensity.