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Facile Orientational Control of M2L2P SURMOFs on < 100 > Silicon Substrates and Growth Mechanism Insights for Defective MOFs
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Synthetic Molecular Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Synthetic Molecular Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Synthetic Molecular Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Physical Chemistry.
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2019 (English)In: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 11, no 41, p. 38294-38302Article in journal (Refereed) Published
Abstract [en]

Layer-by-layer growth of Cu-2(bdc)(2)(dabco) surface-mounted metal organic frameworks (SURMOFs) was investigated on silicon wafers treated with different surface anchoring molecules. Well-oriented growth along the [100] and [001] directions could be achieved with simple protocols: growth along the [100] direction was achieved by substrate pretreatment with 80 degrees C piranha, while growth along the [001] direction was enabled by only rinsing silicon with absolute ethanol. Growth along the [001] direction produced more homogeneous SURMOF films. Optimization to enhance [001]-preferred orientation growth revealed that small changes in the SURMOF growth sequence (the number of rinse steps and linker concentrations) have a noticeable impact on the final film quality and the number of misaligned crystals. This new straightforward protocol was used to successfully grow other layer pillar-type SURMOFs, including the growth of Cu-2(bdc)(2)(bipy) with simultaneous suppression of framework interpenetration.

Place, publisher, year, edition, pages
2019. Vol. 11, no 41, p. 38294-38302
Keywords [en]
MOFs, SURMOFs, silicon, methodology, surface anchoring molecules, silatranes
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-397122DOI: 10.1021/acsami.9b12407ISI: 000491219700097PubMedID: 31549498OAI: oai:DiVA.org:uu-397122DiVA, id: diva2:1370556
Funder
EU, European Research Council, ERC-CoG2015-681895_MOFcatSwedish Energy AgencyStiftelsen Olle Engkvist ByggmästareAvailable from: 2019-11-15 Created: 2019-11-15 Last updated: 2019-11-15Bibliographically approved

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McCarthy, Brian D.Liseev, TimofeyBeiler, Anna M.Materna, Kelly L.Ott, Sascha

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