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Related Experiment Video

Updated: Jun 3, 2026

Microfluidic-based Synthesis of Covalent Organic Frameworks (COFs): A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface
08:42

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

Published on: July 10, 2017

Oriented 2D covalent organic framework thin films on single-layer graphene.

John W Colson1, Arthur R Woll, Arnab Mukherjee

  • 1Department of Chemistry and Chemical Biology, Cornell University, Baker Laboratory, Ithaca, NY 14853, USA.

Science (New York, N.Y.)
|April 9, 2011
PubMed
Summary

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Researchers developed a new method to create thin films of Covalent Organic Frameworks (COFs) on graphene. This breakthrough enables the study and application of COFs in organic electronic devices.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemistry

Background:

  • Covalent Organic Frameworks (COFs) are typically insoluble powders.
  • Processing COFs into usable forms is challenging for many applications.

Purpose of the Study:

  • To develop a method for synthesizing 2D COF films.
  • To enable characterization and application of COFs in thin-film form.

Main Methods:

  • Solvothermal synthesis of COF films on single-layer graphene (SLG).
  • Utilized various SLG substrates including copper, silicon carbide, and fused silica.
  • Optical spectroscopy in transmission mode for COF analysis.

Main Results:

  • Successfully grew vertically aligned, crystalline 2D COF films on SLG.

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Fabricating van der Waals Heterostructures with Precise Rotational Alignment
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Last Updated: Jun 3, 2026

Microfluidic-based Synthesis of Covalent Organic Frameworks (COFs): A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface
08:42

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

Published on: July 10, 2017

Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
14:52

Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding

Published on: September 23, 2018

Fabricating van der Waals Heterostructures with Precise Rotational Alignment
09:25

Fabricating van der Waals Heterostructures with Precise Rotational Alignment

Published on: July 5, 2019

  • Achieved improved crystallinity compared to COF powders.
  • Demonstrated suitability of two COF films for organic electronics.

    • Conclusions:

    • Developed a simple solvothermal method for fabricating COF thin films on graphene.
    • The COF films exhibit long-range order and vertical alignment.
    • This advancement facilitates the exploration of COFs in optoelectronic devices.