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Related Experiment Video

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Structural Color Patterns by Electrohydrodynamic Jet Printed Photonic Crystals.

Haibo Ding1, Cun Zhu1, Lei Tian1

  • 1State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China.

ACS Applied Materials & Interfaces
|January 26, 2017
PubMed
Summary

Electrohydrodynamic jet (E-jet) printing with colloidal crystal inks enables fabrication of tunable structural color patterns. This novel technique allows for precise control over photonic crystal morphology and optical properties for advanced functional devices.

Keywords:
colloidal crystalselectrohydrodynamic jet printingphotonic crystalsself-assemblystructural color

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Area of Science:

  • Materials Science
  • Optics
  • Nanotechnology

Background:

  • Photonic crystals offer unique optical properties.
  • Controlling their morphology and color is crucial for applications.
  • Existing fabrication methods can be complex and limited.

Purpose of the Study:

  • To demonstrate electrohydrodynamic jet (E-jet) printing of photonic crystal patterns.
  • To achieve controllable morphologies and structural colors using colloidal crystal inks.
  • To explore the potential of this technique for functional devices.

Main Methods:

  • Utilized E-jet printing with colloidal crystal inks (silica nanoparticles).
  • Controlled pattern morphology via applied voltage and substrate wettability.
  • Tuned optical properties through nanoparticle self-assembly.

Main Results:

  • Successfully fabricated photonic crystal patterns with tunable structural colors.
  • Demonstrated precise control over pattern morphology (dots, lines).
  • Achieved customized functional patterns through direct printing.

Conclusions:

  • E-jet printing with colloidal crystal inks is a novel and effective method for fabricating photonic crystals.
  • This technique offers precise control over morphology and optical properties.
  • Results show promise for applications in displays, biosensors, and functional devices.