Binary polyethylene oxide/titania solid-state redox electrolyte for highly efficient nanocrystalline TiO2 photoelectrochemical cells
Binary polyethylene oxide/titania solid-state redox electrolyte for highly efficient nanocrystalline TiO2 photoelectrochemical cells
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DOI：
10.1021/nl025798u
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发表时间：
2002-11-01
期刊：
影响因子：
10.8
通讯作者：
Falaras, P
中科院分区：
文献类型：
--
作者：
Stergiopoulos, T;Arabatzis, IM;Falaras, P
以Ru(Dcbpy)(2)(NCS)(2)络合物为敏化剂，以纳米多孔二氧化钛薄膜为光阳极，制备了聚氧化乙烯/二氧化钛聚合物电解质光电化学电池。二氧化钛填料的引入降低了聚合物的结晶度，提高了I-/I-3(-)氧化还原对的迁移率，从而使相应的染料敏化纳米晶二氧化钛太阳能电池的总转换效率出众(在直射阳光下为4.2%)，这是迄今为止报道的固态器件最好的效率之一。
Poly(ethylene oxide)/titania polymer electrolyte based photoelectrochemical cells have been fabricated with Ru(dcbpy)(2)(NCS)(2) complex as the sensitizer and nanoporous TiO2 films as photoanodes. The introduction of the titania filler into the poly(ethylene oxide) matrix reduces the crystallinity of the polymer and enhances the mobility of the I-/I-3(-) redox couple, resulting in outstanding overall conversion efficiency (4.2% under direct sunlight illumination) of the corresponding dye-sensitized nanocrystalline TiO2 solar cell, one of the best efficiencies reported to date for a solid-state device.