| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Schneider, Christian
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2023Effect of Particle Size and Pressure on the Transport Properties of the Fast Ion Conductor t-Li7SiPS8citations
- 2022Effect of Particle Size and Pressure on the Transport Properties of the Fast Ion Conductor t-Li7SiPS8
- 2021Ultrathin Ga2O3 Glasscitations
- 2020Correction: Micro-spectroscopy of HKUST-1 metal–organic framework crystals loaded with tetracyanoquinodimethane: effects of water on host–guest chemistry and electrical conductivity
- 2020Strain-tunable single photon sources in WSe2 monolayerscitations
- 2019Micro-spectroscopy of HKUST-1 metal-organic framework crystals loaded with tetracyanoquinodimethane: effects of water on host-guest chemistry and electrical conductivitycitations
- 2019Micro-spectroscopy of HKUST-1 metal-organic framework crystals loaded with tetracyanoquinodimethane: effects of water on host-guest chemistry and electrical conductivity
- 2019Integration of atomically thin layers of transition metal dichalcogenides into high-Q, monolithic Bragg-cavities:an experimental platform for the enhancement of optical interaction in 2D-materialscitations
- 2019Integration of atomically thin layers of transition metal dichalcogenides into high-Q, monolithic Bragg-cavities : an experimental platform for the enhancement of optical interaction in 2D-materialscitations
- 2019Optimization of the specimen geometry of unidirectional reinforced composites with a fibre orientation of 90° for tensile, quasi-static and fatigue tests
- 2019Strain-tunable single photon sources in WSe 2 monolayerscitations
- 2019Towards polariton blockade of confined exciton–polaritonscitations
- 2019Towards polariton blockade of confined exciton–polaritonscitations
- 2018High electrical conductivity and high porosity in a Guest@MOF material : Evidence of TCNQ ordering within Cu3BTC2 microporescitations
- 2016Electrical Conductivity and Morphology Changes of HKUST-1 single crystals and thin films upon exposure to TCNQ.
- 2013Energy-resolved magnetic domain imaging in TbCo alloys by valence band photoemission magnetic circular dichroismcitations
- 2013Spatiotemporal characterization of SPP pulse propagation in two-dimensional plasmonic focusing devicescitations
- 2011Electrically Driven Quantum Dot Micropillar Light Sourcescitations
- 2004Modellierung des Dehnvorgangs von Polymerschmelzen bei der Drahtummantelung im Schlauchreckverfahren mit Hilfe uniaxialer Dehnexperimente
Places of action
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article
Micro-spectroscopy of HKUST-1 metal-organic framework crystals loaded with tetracyanoquinodimethane: effects of water on host-guest chemistry and electrical conductivity
Abstract
Composite materials, consisting of a metal–organic framework (MOF) and a guest molecule, further denoted as guest@MOF composites, have gained strong interest due to the guest-induced tunability of the host properties, for example in sensing or electroconductivity applications. However, decoding the complexity of these guest@MOF composites and extracting structure-performance relationships are far from trivial and require the use of a gamut of characterization tools. In this work, we use various micro-spectroscopic tools both under static (ex situ) and dynamic (in situ) conditions to map the properties and diffusion behavior of TCNQ (7,7,8,8-tetracyanoquinodimethane) as a guest molecule in single HKUST-1 crystals as the host. Raman micro-spectroscopy allowed us to map the spatial distribution of TCNQ within HKUST-1 single crystals, thereby revealing a heterogeneous distribution of TCNQ after initial TCNQ-infiltration, concentrated at the crystal edges, and a homogeneous redistribution upon water vapor treatment. These insights are correlated to I–V scans at different temperatures and to electrochemical impedance spectroscopy (EIS), which allowed us to verify the different contributions to conductivity. These data showed changes in electrical conductivity after exposing the sample to moisture and air. In situ FT-IR micro-spectroscopy during treatment with moisturized nitrogen gas suggests lower transient diffusion rates for water inside TCNQ@HKUST-1 relative to pristine HKUST-1, likely due to steric hindrance of the pore-filling TCNQ molecules in the HKUST-1 framework. The application of micro-spectroscopic techniques is crucial to uncovering MOF intracrystal heterogeneities and yielding rationally-derived instructions for the improved design of guest@MOF systems.