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Updated: May 15, 2025

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface
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Semiconducting Covalent Organic Frameworks.

Donglin Jiang1, Vincent Guan Wu Tan1, Yifan Gong1

  • 1Department of Chemistry, Faulty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.

Chemical Reviews
|May 14, 2025
PubMed
Summary
This summary is machine-generated.

Covalent organic frameworks (COFs) enable precise π-structure organization in organic semiconductors. This review explores semiconducting COFs, their synthesis, and diverse applications, highlighting structure-property relationships for future advancements.

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Area of Science:

  • Materials Science
  • Organic Chemistry
  • Semiconductor Physics

Background:

  • Organic semiconductors are crucial for modern electronics, offering tunable properties.
  • A key challenge is organizing organic π-units into ordered structures for enhanced performance.
  • Covalent Organic Frameworks (COFs) provide a platform for creating ordered π-architectures.

Purpose of the Study:

  • To review the structural features, design principles, and synthesis of semiconducting COFs.
  • To explore the diverse applications of semiconducting COFs based on their structure-property relationships.
  • To identify future research directions and challenges in the field of semiconducting COFs.

Main Methods:

  • Exploration of linkage chemistries and synthetic strategies for COF synthesis (e.g., one-pot polymerization).
  • Analysis of COF fabrication into various forms (bulk, nanosheets, films, membranes).
  • Elucidation of interactions between COFs and photons, phonons, electrons, holes, ions, molecules, and spins.

Main Results:

  • Development of a rich library of semiconducting COFs with precisely defined π-architectures.
  • Categorization of semiconducting COFs into nine application areas: semiconductors, photoconductors, light emitters, sensors, photocatalysts, photothermal conversion materials, electrocatalysts, energy storage electrodes, and radical spin materials.
  • Demonstration of strong structure-originated properties and functions in semiconducting COFs.

Conclusions:

  • Semiconducting COFs represent a significant advancement in organic semiconductor research.
  • Understanding structure-function correlations is key to unlocking their full potential.
  • Future research should address fundamental challenges and explore new frontiers in COF design and application.