Film quality and electronic properties of a surface-anchored metal-organic framework revealed by using a multi-technique approach
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The virtually unlimited versatility and unparalleled level of control in the design of metal-organic frameworks (MOFs) has recently been shown to also entail a potential for applications based on the electrical and electronic properties of this rich class of materials. At present, methods to provide reliable and reproducible contacts to MOF materials are scarce; therefore, we have carried out a detailed, multi-technique investigation of an empty and loaded prototype MOF, HKUST-1. Epitaxial thin films of this material grown on a substrate by using liquid-phase epitaxy have been studied by cyclic voltammetry, atomic force microscopy, and quartz crystal microbalance and their quality assessed. By using an ionic liquid as the electrolyte, it is shown that redox-active molecules like ferrocene can be embedded in the pores, enabling a change in the overall conductivity of the framework and the study of the redox chemistry of guest molecules inside the MOF.
Liu , J , Paradinas , M , Heinke , L , Buck , M , Ocal , C , Mugnaini , V & Wöll , C 2016 , ' Film quality and electronic properties of a surface-anchored metal-organic framework revealed by using a multi-technique approach ' ChemElectroChem , vol 3 , no. 5 , pp. 713-718 . DOI: 10.1002/celc.201500486
© 2016, Publisher / the Author(s). This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at onlinelibrary.wiley.com / https://dx.doi.org/10.1002/celc.201500486
DescriptionV.M. acknowledges the EU for the funding through the granting of a Marie Curie Intra-European Fellowship (FP7-PEOPLE-2011; MOLSURMOF-301110). J.L. acknowledges the program of China Scholarship Council (CSC) for financial support. V.M., J.L., and C.W. acknowledge A. Terfort for supplying the thiol derivatives. M.P. and C.O. acknowledge financial support from the Spanish Government through grant projects MAT2013–47869-C4–1-P and SEV-2015–0496, and Generalitat de Catalunya through grant project 2014 SGR 501.
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