Non-Covalent Postfunctionalization of Dye Layers on TiO₂ - A Tool for Enhancing Injection in Dye-Sensitized Solar Cells.

ABSTRACT: 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 TiO₂ 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 addi

SUBMITTER: Luchs T 

PROVIDER: S-EPMC7986074 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature