Energy and Climate
Energy and ClimateECResearch & CapabilitiesCapabilitiesSandia Metal-Organic Framework LDRD Research Published in Science

Sandia Metal-Organic Framework LDRD Research Published in Science

Fabrication of conductive MOF thin-film devices and structural characterization.  (A) TCNQ molecule shown above a Cu3(BTC)2 MOF; arrow points into the pore. White, hydrogen; blue, nitrogen; cyan, carbon; red, oxygen; light brown, copper. (B) SEM image of MOF-coated device; insets are optical images of devices before and after TCNQ infiltration. (C) XRD data for powders and grazing incidence XRD for a thin film.

Fabrication of conductive MOF thin-film devices and structural characterization. (A) TCNQ molecule shown above a Cu3(BTC)2 MOF; arrow points into the pore. White, hydrogen; blue, nitrogen; cyan, carbon; red, oxygen; light brown, copper. (B) Scanning electron microscope image of MOF-coated device; insets are optical images of devices before and after TCNQ infiltration. (C) X-ray diffraction (XRD) data for powders and grazing incidence XRD for a thin film.

Alec Talin, Farid El Gabaly, and François Léonard (all in Sandia’s Materials Physics Dept.); Mike Foster (Materials Chemistry Dept.); Vitale Stavila (Hydrogen and Combustion Technology Dept.); and Mark Allendorf (Biological and Materials Sciences Center), plus National Institute of Standards and Technology (NIST) collaborators, published “Tunable electrical conductivity in metal-organic framework thin-film devices” in the December 5 edition of Science.

The paper reports a strategy for realizing tunable electrical conductivity in metal-organic frameworks (MOFs) in which the nanopores are infiltrated with redox-active, conjugated guest molecules. These ohmically conducting porous MOFs could have applications in conformal electronic devices, reconfigurable electronics, and sensors.

The work was supported by the DOE SunShot program and Sandia’s Laboratory-Directed Research and Development (LDRD) project: “Crystalline nanoporous frameworks: A nanolaboratory for probing excitonic device concepts,” a project now in its third year.

Comments are closed.



Feedback

Feedback