Dye‐sensitized solar cells containing sugar‐based Natural Deep Eutectic Solvents (NADESs) as active electrolyte solvents have been studied in their photovoltaic (PV) properties, including main PV characteristics, IPCE, and EIS. Five monosaccharides were selected as NADES H‐bond donors and investigated with a phenothiazine‐based sensitizer carrying a glucose functionality and a glucose‐based co‐adsorbent (glucuronic acid) to explore directional intermolecular interactions and improve the PV performance. The highest power conversion efficiencies were recorded for cells containing the glucose‐based sensitizer in the presence of glucuronic acid in the sugar‐based NADES. When one of these components was omitted, performances were lower suggesting that the best response came from an interplay between the sugar‐based units. Not only has the unprecedented use of a NADES as a fully natural and bio‐renewable DSSC medium been presented, but for the first time an active role of the electrolyte solvent has been reported and exploited to increase the performance of the solar device.

中文翻译：

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环保的基于糖的天然深共熔溶剂，可作为染料敏化太阳能电池的有效电解质溶液

已经研究了含有糖基天然深共晶溶剂（NADES）作为活性电解质溶剂的染料敏化太阳能电池的光伏（PV）特性，包括主要的PV特性，IPCE和EIS。选择了五种单糖作为NADES H键供体，并用带有吩噻嗪的敏化剂进行了研究，该敏化剂具有葡萄糖功能和基于葡萄糖的共吸附剂（葡萄糖醛酸），以探索分子间的定向相互作用并改善PV性能。在糖基NADES中，在葡萄糖醛酸存在下，含有葡萄糖基敏化剂的细胞记录到最高的功率转换效率。当省略这些组件之一时，性能较低，表明最佳响应来自糖基单元之间的相互作用。