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Benzoporphyrins: Selective Co-sensitization in Dye-Sensitized Solar Cells

机译:苯并卟啉:染料敏化太阳能电池中的选择性共敏化。

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摘要

A novel class of dyes, namely benzoporphyrins, was synthesized and implemented into dye-sensitized solar cells. They feature complementary absorptions compared to N719, which renders them promising candidates for co-sensitization in DSSCs. Notably, metallated benzoporphyrins reveal a TiO2-nanoparticle attachment that is size and aggregation dependent. Therefore, unproductive energy-transfer events between the selectively attached dyes can be prevented. In light of the latter, an efficiency improvement of 39% has been achieved upon selective adsorption of benzoporphyrins and N719 onto different layers of TiO2 photoelectrode.
机译:合成了一类新型的染料,即苯并卟啉,并将其应用于染料敏化太阳能电池。与N719相比,它们具有互补的吸收特性,这使其成为有前途的DSSCs共敏候选物。值得注意的是,金属化的苯并卟啉显示出TiO2纳米颗粒的附着力,该附着力取决于大小和聚集。因此,可以防止选择性连接的染料之间发生非生产性的能量转移事件。鉴于后者,当将苯并卟啉和N719选择性吸附到TiO2光电极的不同层上时,效率提高了39%。

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