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Keywords:

  • electrospray deposition (ESD);
  • electrostatic deposition;
  • MEH-PPV;
  • nanoparticles;
  • organic light-emitting diode (OLED)
Thumbnail image of graphical abstract

A new method for fabricating micropatterns of MEH-PPV thin films with surface roughnesses below 1nm is proposed, using electrospray deposition and a dual-solvent technique. The basic concept is that nanoparticles are deposited on the target substrate just before they become completely dry, by adding a solvent that has an evaporation speed relatively lower than that of the original solution.