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Hierarchical assemblies of molecular frameworks—MOF-on-MOF epitaxial heterostructures

Haldar, Ritesh; Wöll, Christof

Functional, porous metal-organic frameworks (MOFs) have attracted much attention as a very flexible class of crystalline, porous materials. For more advanced applications that exploit photophysical properties, the fabrication of hierarchical assemblies, including the creation of MOF/MOF heterointerfaces, is important. For the manufacturing of superstructures with length scales well beyond that of the MOF pore size, layer-by-layer (lbl) methods are particularly attractive. These allow the isoreticular approach to be extended to superstructures with micrometer length scales, a range that is not accessible using conventional MOF design. The lbl approach further substantially extends the compositional diversity in MOFs. At the same time, the favorable elastic properties of MOFs allow for heteroepitaxial growth, even in the case of lattice misfits as large as 20%. While the MOF-on-MOF approach to designing multicomponent superstructures with synergistic multifunctionality can also be realized with sophisticated solvothermal synthesis schemes, the lbl (or liquid-phase epitaxy) approach carries substantial advantages, in particular when it comes to the integration of such MOF superstructures into optical or electronic devices. ... mehr

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Postprint §
DOI: 10.5445/IR/1000122939
Frei zugänglich ab 21.07.2021
DOI: 10.1007/s12274-020-2953-z
Zitationen: 9
Web of Science
Zitationen: 10
Zitationen: 11
Zugehörige Institution(en) am KIT Institut für Funktionelle Grenzflächen (IFG)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 02.2021
Sprache Englisch
Identifikator ISSN: 1998-0124, 1998-0000
KITopen-ID: 1000122939
HGF-Programm 43.22.01 (POF III, LK 01) Functionality by Design
Erschienen in Nano research
Verlag Springer Verlag
Band 14
Heft 2
Seiten 355-368
Vorab online veröffentlicht am 20.07.2020
Nachgewiesen in Dimensions
Web of Science
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