Luchs Tobias, Zieleniewska Anna, Kunzmann Andreas, Schol Peter R, Guldi Dirk M, Hirsch Andreas
Chair of Organic Chemistry II, Department of Chemistry & Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus-Fiebiger-Straße 10, 91058, Erlangen, Germany.
Chair of Physical Chemistry I, Department of Chemistry & Pharmacy, Friedrich-Alexander-Universität Erlangen, Egerlandstraße 3, 91058, Erlangen, Germany.
Chemistry. 2021 Mar 12;27(15):5041-5050. doi: 10.1002/chem.202004928. Epub 2021 Feb 15.
We report on newly tailored dye layers, which were employed, on one hand, for covalent deposition and, on the other hand, for non-covalently post-functionalizing TiO nanoparticle films. Our functionalization concept enabled intermixing a stable covalent attachment of a first layer with a highly versatile and reversible hydrogen bonding through the Hamilton receptor-cyanuric acid binding motif as a second layer. Following this concept, we integrated step-by-step a first porphyrin layer and a second porphyrin/BODIPY layer. The individual building blocks and their corresponding combinations were probed with regard to their photophysical properties, and the most promising combinations were implemented in dye-sensitized solar cells (DSSCs). Relative to the first porphyrin layer adding the second porphyrin/BODIPY layers increased the overall DSSC efficiency by up to 43 %.
我们报道了新定制的染料层，一方面用于共价沉积，另一方面用于对TiO纳米颗粒薄膜进行非共价后功能化。我们的功能化概念能够通过汉密尔顿受体-氰尿酸结合基序作为第二层，将第一层的稳定共价连接与高度通用且可逆的氢键相结合。按照这一概念，我们逐步整合了第一层卟啉层和第二层卟啉/硼二吡咯层。对各个构建模块及其相应组合的光物理性质进行了探究，并将最有前景的组合应用于染料敏化太阳能电池（DSSC）中。相对于第一层卟啉层，添加第二层卟啉/硼二吡咯层使DSSC的整体效率提高了高达43%。
