6533b7d0fe1ef96bd125a62e
RESEARCH PRODUCT
Guest Effect on Nanopatterned Spin-Crossover Thin Films
Azzedine BousseksouCarlos Bartual-murguiJosé Antonio RealGábor MolnárAmal AkouLionel SalmonChristophe Thibaultsubject
Materials scienceSpin statesSpin transitionNanotechnology02 engineering and technologyMicroscopy Atomic ForceSpectrum Analysis Raman010402 general chemistry01 natural sciencesBiomaterialssymbols.namesakeSpin crossoverMetals HeavyDesorptionTransition TemperatureGeneral Materials ScienceThin film[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/MicroelectronicsCyanidesThin layersTransition temperatureGeneral Chemistry021001 nanoscience & nanotechnologyNanostructures0104 chemical sciencessymbolsPhysical chemistrySpin Labels0210 nano-technologyRaman spectroscopyBiotechnologydescription
International audience; Nanopatterned thin films of the metal–organic framework {Fe(bpac)[Pt(CN)4]} (bpac=bis(4‐pyridyl)acetylene) are elaborated by the combination of a sequential assembly process and a lithographic method. Raman microspectroscopy is used to probe the temperature dependence of the spin state of the iron(II) ions in the films (40–90 nm in thickness), and reveals an incomplete but cooperative spin transition comparable to that of the bulk material. Adsorption/desorption of pyridine guest molecules is found to have a substantial influence on the spin‐crossover properties of the thin layers. This interplay between host–guest and spin‐crossover properties in thin films and nanopatterns demonstrates the potential ability of using this kind of material as a microsensor.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-12-02 |