Assembly, charge-transfer and solar cell performance with porphyrin-C₆₀ on NiO for p-type dye-sensitized solar cells.

ABSTRACT: A series of zinc tetraphenylporphyrin photosensitizers furnished with three different anchoring groups, benzoic acid, phenylphosphonate and coumarin-3-carboxylic acid, were prepared using 'click' methodology. All three gave modest performances in liquid junction devices with I₃^-/I^- as the electrolyte. The distinct spectroscopic properties of the porphyrins allowed a detailed investigation of the adsorption behaviour and kinetics for charge transfer at the NiO|porphyrin interface. The adsorption behaviour was modelled using the Langmuir isotherm model and the phosphonate anchoring group was found to have the highest affinity for NiO (6.65 × 10⁴M^-1) and the fastest rate of adsorption (2.46 × 10⁷cm²mol^-1

SUBMITTER: Benazzi E 

PROVIDER: S-EPMC6635627 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature