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Electrospray deposition of organic molecules on bulk insulator surfaces

Hinaut, Antoine and Pawlak, Remy and Meyer, Ernst and Glatzel, Thilo. (2015) Electrospray deposition of organic molecules on bulk insulator surfaces. Beilstein Journal of Nanotechnology, 6. pp. 1927-1934.

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Official URL: http://edoc.unibas.ch/40342/

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Abstract

Large organic molecules are of important interest for organic-based devices such as hybrid photovoltaics or molecular electronics. Knowing their adsorption geometries and electronic structures allows to design and predict macroscopic device properties. Fundamental investigations in ultra-high vacuum (UHV) are thus mandatory to analyze and engineer processes in this prospects. With increasing size, complexity or chemical reactivity, depositing molecules by thermal evaporation becomes challenging. A recent way to deposit molecules in clean conditions is Electrospray Ionization (ESI). ESI keeps the possibility to work with large molecules, to introduce them in vacuum, and to deposit them on a large variety of surfaces. Here, ESI has been successfully applied to deposit triply fused porphyrin molecules on an insulating KBr(001) surface in UHV environment. Different deposition coverages have been obtained and characterization of the surface by in-situ atomic force microscopy working in the non-contact mode shows details of the molecular structures adsorbed on the surface. We show that UHV-ESI, can be performed on insulating surfaces in the sub-monolayer regime and to single molecules which opens the possibility to study a variety of complex molecules.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Meyer, Ernst and Glatzel, Thilo and Pawlak, Rémy and Hinaut, Antoine
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Beilstein-Institut
ISSN:2190-4286
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:30 Jun 2016 11:00
Deposited On:02 May 2016 13:01

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