Growth modes of nanoparticle superlattice thin films.

نویسندگان

  • D Mishra
  • D Greving
  • G A Badini Confalonieri
  • J Perlich
  • B P Toperverg
  • H Zabel
  • O Petracic
چکیده

We report on the fabrication and characterization of iron oxide nanoparticle thin film superlattices. The formation into different film morphologies is controlled by tuning the particle plus solvent-to-substrate interaction. It turns out that the wetting vs dewetting properties of the solvent before the self-assembly process during solvent evaporation plays a major role in determining the resulting film morphology. In addition to layerwise growth three-dimensional mesocrystalline growth is also evidenced. The understanding of the mechanisms ruling nanoparticle self-assembly represents an important step towards the fabrication of novel materials with tailored optical, magnetic or electrical transport properties.

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عنوان ژورنال:
  • Nanotechnology

دوره 25 20  شماره 

صفحات  -

تاریخ انتشار 2014