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首页> 外文期刊>Advanced Materials >Porous One-dimensional Photonic Crystals Improve The Power-conversion Efficiency Of Dye-sensitized Solar Cells
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Porous One-dimensional Photonic Crystals Improve The Power-conversion Efficiency Of Dye-sensitized Solar Cells

机译：多孔一维光子晶体提高了染料敏化太阳能电池的功率转换效率

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摘要

Dye-sensitized solar cells (DSSCs) combine a solid, wide-bandgap semiconductor with a liquid ionic conductor. They usually consist of one electrode made of a layer of a few micrometers of titanium dioxide nanocrystals (nc-TiO_2, average crystal size around 20 nm), on whose surface a dye, typically a ruthenium polypyridyl complex, is adsorbed. This nanocrystalline film is deposited onto a conductive, transparent substrate, typically indium tin oxide (ITO) or fluorinated SnO_2, and soaked with a redox electrolyte, typically containing I~-/I~(3-) ion pairs. This electrolyte is also in contact with a counterelectrode coated with a colloidal platinum catalyst. Sunlight is harvested by the dye, producing photoexcited electrons that are injected into the conduction band of the nanocrystalline semiconductor network, and then into the conducting substrate.
机译：染料敏化太阳能电池（DSSC）将固态的宽带隙半导体与液态离子导体结合在一起。它们通常由一个电极组成，该电极由几微米的二氧化钛纳米晶体（nc-TiO_2，平均晶体大小约为20 nm）的层组成，其表面吸附了通常为钌多吡啶基络合物的染料。将该纳米晶体膜沉积在通常为铟锡氧化物（ITO）或氟化SnO_2的导电透明基板上，并用通常包含I〜/ I〜（3-）离子对的氧化还原电解质浸泡。该电解质还与涂覆有胶体铂催化剂的对电极接触。染料收集阳光，产生光激发电子，这些电子被注入到纳米晶体半导体网络的导带中，然后被注入导电衬底中。

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