The development of new anchoring groups is important to facilitate effective co‐sensitization in dye‐sensitized solar cells (DSSCs). Herein, stable organic D–π–A dyes that contain new heterocyclic hydantoin‐based anchoring groups have been designed, synthesized, and used in DSSCs. These dye sensitizers were evaluated in terms of their absorption spectra, electrochemical properties, and performance in DSSC devices. Although only one‐third of the amount of hydantoin‐containing dyes adsorbed onto TiO₂ relative to their cyanoacrylic‐acid‐containing analogues, they exhibited effective photoexcited electron‐transfer properties. External quantum efficiencies of over 80 % was observed, which were comparable to those of the cyanoacrylic‐acid‐containing dyes. In addition, the new hydantoin‐containing dyes exhibited significant robustness, which could allow improved stability of their corresponding photovoltaic devices under harsh conditions, such as high temperature and humidity.

中文翻译：

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D–π–A染料，含有染料敏化太阳能电池的新的乙内酰脲锚定基团

新的锚定基团的发展对于促进染料敏化太阳能电池（DSSC）的有效共敏化很重要。在此，已经设计，合成了含有新的基于乙内酰脲的杂环基的锚定基团的稳定的有机D–π–A染料，并将其用于DSSC中。对这些染料敏化剂的吸收光谱，电化学性质和DSSC装置的性能进行了评估。尽管只有三分之一的含乙内酰脲的染料吸附在TiO _2上相对于其含氰基丙烯酸的类似物，它们表现出有效的光激发电子转移性质。观察到外部量子效率超过80％，与含氰基丙烯酸的染料相当。此外，这种新型的含乙内酰脲的染料显示出显着的耐用性，这可以提高其相应光伏器件在恶劣条件下（例如高温和高湿）的稳定性。