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Bio-Inspired Controllable Liquid Transfer: From Fundamentals in Micro-Patterning to Applications in Optoelectronics.

Zhongyu Shi1, Bojie Xu2, Yiming Chen1

  • 1State Key Laboratory of Bioinspired Interfacial Materials Science, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China.

Advanced Materials (Deerfield Beach, Fla.)
|May 30, 2025
PubMed
Summary
This summary is machine-generated.

A new fibrous-guided direct-writing strategy offers controllable liquid transfer for creating high-resolution micro-patterns. This method enhances uniformity and orientation, enabling advanced optoelectronic devices.

Keywords:
bio‐inspiredcontrollable liquid transfermicro‐patterningoptoelectronic devices

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Optoelectronics

Background:

  • Solution-processed micro-patterning is vital for high-performance optoelectronic devices.
  • Carrier transfer in devices depends on micro-pattern uniformity, orientation, and resolution.
  • Controllable solution processes for micro-patterning are of significant research interest.

Purpose of the Study:

  • To review a fibrous-guided direct-writing strategy for controllable micro-pattern fabrication.
  • To explore the fundamentals of liquid manipulation using fibrous structures.
  • To demonstrate applications in optoelectronics.

Main Methods:

  • Development of dual-conical fibers (CFs) for controlled liquid transfer.
  • Utilizing dynamic liquid balance and uniform liquid film properties of CFs.
  • Employing triple- and multi- CFs to finely tune the tri-phase contact line for precise patterning.

Main Results:

  • Achieved micro-patterns with micrometer-scale resolution, centimeter-scale uniformity, and molecular-scale orientation.
  • Demonstrated ultrasmooth quantum dot films, highly aligned silver nanowire films, and wrinkle-free reduced graphene oxide films.
  • Fabricated high-performance optoelectronic devices, including quantum dot light-emitting diodes, flexible transparent electrodes, and pressure sensors.

Conclusions:

  • The fibrous-guided direct-writing strategy provides excellent control over micro-pattern fabrication.
  • This technique enables the creation of advanced materials for high-performance optoelectronic applications.
  • Future perspectives for solution-processed micro-patterning in optoelectronics are promising.