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Comparing a porphyrin- and a coumarin-based dye adsorbed on NiO(001)

Freund, Sara and Hinaut, Antoine and Marinakis, Nathalie and Constable, Edwin C. and Meyer, Ernst and Housecroft, Catherine E. and Glatzel, Thilo. (2019) Comparing a porphyrin- and a coumarin-based dye adsorbed on NiO(001). Beilstein Journal of Nanotechnology, 10. pp. 874-881.

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Abstract

Properties of metal oxides, such as optical absorption, can be influenced through the sensitization with molecular species that absorb visible light. Molecular/solid interfaces of this kind are particularly suited for the development and design of emerging hybrid technologies such as dye-sensitized solar cells. A key optimization parameter for such devices is the choice of the compounds in order to control the direction and the intensity of charge transfer across the interface. Here, the deposition of two different molecular dyes, porphyrin and coumarin, as single-layered islands on a NiO(001) single crystal surface have been studied by means of non-contact atomic force microscopy at room temperature. Comparison of both island types reveals different adsorption and packing of each dye, as well as an opposite charge-transfer direction, which has been quantified by Kelvin probe force microscopy measurements.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Anorganische Chemie (Constable)
05 Faculty of Science > Departement Chemie > Chemie > Anorganische Chemie (Housecroft)
05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Housecroft, Catherine Elizabeth and Freund, Sara and Hinaut, Antoine and Marinakis, Nathalie and Constable, Edwin Charles and Meyer, Ernst and Glatzel, Thilo
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Beilstein-Institut
e-ISSN:2190-4286
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
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Last Modified:15 May 2019 09:07
Deposited On:15 May 2019 09:07

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