Ionic liquid-stabilized nanoparticles of charge transfer-based conductors

• Published in: Synthetic metals 2010-06, Vol.160 (11), p.1223-1227
• Main Authors: de Caro, Dominique, Jacob, Kane, Faulmann, Christophe, Legros, Jean-Pierre, Senocq, François, Fraxedas, Jordi, Valade, Lydie
• Format: Article
• Language: English
• Subjects: Charge; Charge transfer; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Conductors; Cross-disciplinary physics: materials science; rheology; Diffraction; Dithiolene complexes; Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures; Electronic transport in multilayers, nanoscale materials and structures; Exact sciences and technology; Ionic liquids; Materials science; Molecular conductors; Nanoparticles; Nanopowders; Nanoscale materials and structures: fabrication and characterization; Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals; Photoelectron spectroscopy; Physics; Structure of solids and liquids; crystallography; Synthetic metals; Tetrathiafulvalene; Transport; X-rays
• ISSN: 0379-6779; 1879-3290
• DOI: 10.1016/j.synthmet.2010.03.013

Well-dispersed nanoparticles of molecule-based conductors, namely TTF·TCNQ and TTF[Ni(dmit) 2] 2, have been prepared in organic solution using 1-butyl-3-metylimidazolium tetrafluoroborate as a stabilizing agent. TTF·TCNQ nanoparticles (prepared at room temperature) exhibit sizes ranging from 2 to 5.5 nm, whereas those of TTF[Ni(dmit) 2] 2 (prepared at −80 °C) are larger (sizes in the 16–45 nm range). Nanoparticle powders have been characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and by transport measurements.