SKM 2021 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 8: Poster Session II

HL 8.17: Poster

Tuesday, September 28, 2021, 10:00–13:00, P

Changes of transport properties in individual carbon nanotubes due to MOF growth — •Marvin J. Dzinnik¹, Benedikt Brechtken¹, Hendrik A. Schulze², Adrian Hannebauer², Enes Akmaz¹, Peter Behrens², and Rolf J. Haug¹ — ¹Institut für Festkörperphysik, Leibniz Universität Hannover, Appelstraße 2, 30167 Hannover, Germany — ²Institut für Anorganische Chemie, Leibniz Universität Hannover, Callinstrasse 9, 30167 Hannover, Germany

Metal-organic frameworks (MOF) are porous structures with tunable pore size and adsorption sites but mostly non-conducting. In combination with carbon nanotubes (CNTs) these hybrid structures preserve porosity of the MOFs while gaining conductivity through the CNTs [1,2]. The mechanism of MOF growth on CNTs is accountable to the functionalization of the carbon nanotubes [1]. To study the interaction between MOF and CNTs and the influence of the synthesis, we prepared samples of contacted multi-walled CNTs. We drop-casted CNTs from ethanol solution on a silicon dioxide surface and contacted them with Cr and Au by electron beam lithography and lift-off. DC transport measurements were performed. In a second step, the sample with the contacted CNT was given into a UiO-66 MOF synthesis. Later transport measurements show drastically increased two-terminal resistance.

[1] H. A. Schulze et al., ChemNanoMat, 5, 1159-1169, (2019).

[2] M.-Q. Wang et al., Electrochimica Acta, 190, 365-370, (2016).