6533b86efe1ef96bd12cc03e
RESEARCH PRODUCT
Conductive nanostructures of MMX chains
Arrigo CalzolariAlejandro GuijarroFélix ZamoraCarlos J. Gómez-garcíaLorena WelteJulio Gómez-herreroCastillo OscarDavid OleaRosa Di FelicePablo J. Sanz Miguelsubject
MMX polymersMaterials scienceCondensed matter physicsbusiness.industryNanowireConductivityCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsBiomaterialsSemiconductorElectrical resistivity and conductivityPhase (matter)ElectrochemistryDensity functional theoryElectronic band structurebusinessElectrical conductordescription
Crystals of [Pt-2(n-pentylCS(2))(4)I] show a transition from semiconductor to metallic with the increase of the temperature (conductivity is 0.3-1.4 S.cm(-1) at room temperature) and a second metallic metallic transition at 330 K, inferred by electrical conductivity measurements. X-ray diffraction studies carried out at different temperatures (100, 298, and 350 K) confirm the presence of three different phases. The valence-ordering of these phases is analyzed using structural, magnetic, and electrical data. Density functional theory calculations allow a further analysis of the band structure derived for each phase. Nanostructures adsorbed on an insulating surface show electrical conductivity. These results suggest that MMX-polymer-based nanowires could be suitable for device applications.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-04-28 |