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Technical University of Munich

Ln-MOF Thin Films and Particles in Luminescent Performance-Polymer Composites

Lanthanide MOFs • Mixed Matrix Membranes • Thin Films

Figure 1. Deliberate generation of white‐light emission: a) excitation and emission spectra of the white emitting RGB architecture of Tb/Eu/Gd‐SURMOF. b) Fabricated SURMOF photographs. c) CIE color coordinates x,y and a chromaticity diagram according to CIE of the optical devices.[1]

A. Knebel(a), C. Janiak(b), K. Müller-Buschbaum(c)

 

(a) Institut für Funktionelle Grenzflächen (IFG), Karlsruher Institut für Technologie (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.

(b) Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany.

(c) Institut für Anorganische und Analytische Chemie, Justus‐Liebig‐Universität Gießen, Heinrich‐Buff‐Ring 17, 35392 Gießen, Germany.

Lanthanide metal-organic frameworks (Ln-MOFs) are an important class of porous materials with characteristic luminescence and interesting energy transfer, originating e.g. from antenna effects between linker and metal ion. Combinations of Gd, Tb and Eu etc. can lead to white light emitting MOFs, e.g. in the form of SURMOF thin films of Ln-BTC, which we used to achieve are wide range of luminescent properties with tuneable heterostructures(Figure 1).[1] However, the use of luminescent Ln-MOFs in performance-polymers is a yet less-explored path.[2] Surface modification of MOFs can lead to perfect dispersion into polymer matrices and offers the possibility to produce high-end performance polymers.[3] We will utilize Ln-MOFs, which are rarely investigated or applied as mixed-matrix membranes (MMMs), and study Ln-MOF-MMMs for sensor application and separations.[4]

References

(1)    D.‐H. Chen, A. E. Sedykh, G. E. Gomez, B. L. Neumeier, J. C. C. Santos, V. Gvilava, R. Maile, C. Feldmann, C. Wöll, C. Janiak et al., Adv. Mater. Interfaces 2020, 2000929.

(2)    J. M. Stangl, D. Dietrich, A. E. Sedykh, C. Janiak, K. Müller-Buschbaum, J. Mater. Chem. C 2018, 6, 9248.

(3)    A. Knebel, A. Bavykina, S. J. Datta, L. Sundermann, L. Garzon-Tovar, Y. Lebedev, S. Durini, R. Ahmad, S. M. Kozlov, G. Shterk et al., Nat. Mater. 2020, 19, 1346.

(4)    J. Dechnik, C. J. Sumby, C. Janiak, Cryst. Growth Des. 2017, 17, 4467.

Interested in finding out more? Click here to learn more about this overarching COORNETs Phase II team and project.

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