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Printing Poly( p-phenyleneethynylene) PLEDs.

Emanuel Smarsly1, Dominik Daume2,3, Robert Tone2,3

  • 1Organisch-Chemisches Institut , Ruprecht-Karls-University Heidelberg , Im Neuenheimer Feld 270 , 69120 Heidelberg , Germany.

ACS Applied Materials & Interfaces
|December 12, 2018
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Summary
This summary is machine-generated.

Researchers developed improved inks for gravure printing of poly(para-phenyleneethynylene)s (PPEs). This enabled high-performance organic light-emitting diodes with excellent luminance, advancing printable electronics.

Keywords:
Hansen solubility parametergravure printingpoly(para-phenyleneethynylene)side-chain modificationstructure property relationship

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Area of Science:

  • Materials Science
  • Organic Electronics
  • Polymer Chemistry

Background:

  • Side-chain-substituted poly(para-phenyleneethynylene)s (PPEs) are promising materials for organic electronics.
  • Developing efficient and scalable fabrication methods for PPE-based devices is crucial.

Purpose of the Study:

  • To formulate enhanced single-component inks for gravure printing of PPEs.
  • To demonstrate the fabrication of high-performance organic light-emitting diodes (OLEDs) using these inks.

Main Methods:

  • Utilized rheological properties and the Hansen solubility model for ink formulation.
  • Employed gravure printing for fabricating thin-film layers.
  • Evaluated thin-film layers using imaging color reflectometry for large-area investigation.

Main Results:

  • Successfully formulated enhanced single-component inks from PPEs.
  • Achieved excellent luminance of 542 cd m-2 at 11.5 V in a gravure-printed OLED.
  • Demonstrated the suitability of the developed inks for fabricating functional electronic devices.

Conclusions:

  • Gravure printing of functional PPE thin films is feasible with optimized inks.
  • The developed ink formulation and printing process enable high-performance, large-area electronic devices.
  • This work contributes to the advancement of printable organic electronics.