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Film quality and electronic properties of a surface-anchored metal-organic framework revealed by using a multi-technique approach

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Author(s)

Jianxi Liu, Markos Paradinas, Lars Heinke, Manfred Buck, Carmen Ocal, Veronica Mugnaini, Christof Wöll

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Abstract

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.

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Original languageEnglish
Pages (from-to)713-718
Number of pages6
JournalChemElectroChem
Volume3
Issue number5
Early online date16 Feb 2016
DOIs
StatePublished - May 2016

    Research areas

  • Cyclic voltammetry, Defect-free film, Ferrocene, Ionic liquids, Metal-organic frameworks

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