Doping of metal-organic frameworks towards resistive sensing

Autor(en)

Hidetsugu Shiozawa, Bernhard C. Bayer, Herwig Peterlik, Jannik C. Meyer, Wolfgang Lang, Thomas Pichler

Abstrakt

Coordination polymerization leads to various metal-organic frameworks (MOFs) with unique physical properties and chemical functionalities. One of the challenges towards their applications as porous materials is to make MOFs optimally conductive to be used as electronic components. Here, it is demonstrated that Co-MOF-74, a honeycomb nano-framework with one-dimensionally arranged cobalt atoms, advances its physical properties by accommodating tetracyanochinodimethan (TCNQ), an acceptor molecule. Strong intermolecular charge transfer reduces the optical band gap down to 1.5 eV of divalent TCNQ and enhances the electrical conduction, which allows the MOF to be utilized for resistive gas-and photo-sensing. The results provide insight into the electronic interactions in doped MOFs and pave the way for their electronic applications.

Organisation(en)

Elektronische Materialeigenschaften, Physik Nanostrukturierter Materialien, Dynamik Kondensierter Systeme

Journal

Scientific Reports

Band

7

Anzahl der Seiten

8

ISSN

2045-2322

DOI

https://doi.org/10.1038/s41598-017-02618-y

Publikationsdatum

05-2017

Peer-reviewed

Ja

ÖFOS 2012

103009 Festkörperphysik, 103018 Materialphysik, 103020 Oberflächenphysik

Schlagwörter

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/4415a20e-3a71-4a00-9dd4-f8adcd714a76