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Keywords:

  • transfer printing;
  • flexible electronics;
  • microstructures;
  • OLED;
  • sticker-type electronics
Thumbnail image of graphical abstract

Introducing two-dimensional post arrays and a water-soluble sacrificial layer between an ultrathin substrate and a handling substrate provides controllability of the interfacial adhesion in a stable manner. The periodically anchored and suspended configuration after the chemical etching process facilitates the development of, for example, printable Alq3-based OLEDs that can be attached to unconventional surfaces.