Scanning probe microscopy studies on the adsorption of selected molecular dyes on titania

Prauzner-Bechcicki, Jakub S. and Zajac, Lukasz and Olszowski, Piotr and Johr, Res and Hinaut, Antoine and Glatzel, Thilo and Such, Bartosz and Meyer, Ernst and Szymonski, Marek. (2016) Scanning probe microscopy studies on the adsorption of selected molecular dyes on titania. Beilstein Journal of Nanotechnology, 7. pp. 1642-1653.

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Titanium dioxide, or titania, sensitized with organic dyes is a very attractive platform for photovoltaic applications. In this context, the knowledge of properties of the titania–sensitizer junction is essential for designing efficient devices. Consequently, studies on the adsorption of organic dyes on titania surfaces and on the influence of the adsorption geometry on the energy level alignment between the substrate and an organic adsorbate are necessary. The method of choice for investigating the local environment of a single dye molecule is high-resolution scanning probe microscopy. Microscopic results combined with the outcome of common spectroscopic methods provide a better understanding of the mechanism taking place at the titania–sensitizer interface. In the following paper, we review the recent scanning probe microscopic research of a certain group of molecular assemblies on rutile titania surfaces as it pertains to dye-sensitized solar cell applications. We focus on experiments on adsorption of three types of prototypical dye molecules, i.e., perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA), phtalocyanines and porphyrins. Two interesting heteromolecular systems comprising molecules that are aligned with the given review are discussed as well.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Meyer, Ernst and Glatzel, Thilo
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:15 Feb 2017 10:16
Deposited On:15 Feb 2017 10:16

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