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Conductive Nanostructures of MMX Chains
Author(s) -
Guijarro Alejandro,
Castillo Oscar,
Welte Lorena,
Calzolari Arrigo,
Miguel Pablo J. Sanz,
GómezGarcía Carlos J.,
Olea David,
di Felice Rosa,
GómezHerrero Julio,
Zamora Felix
Publication year - 2010
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200901901
Subject(s) - materials science , mmx , electrical resistivity and conductivity , nanowire , nanostructure , valence (chemistry) , electrical conductor , conductivity , semiconductor , metal , condensed matter physics , nanotechnology , chemistry , optoelectronics , metallurgy , composite material , physics , engineering , computer science , electrical engineering , organic chemistry , operating system
Abstract 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.