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  1. Home
  3. Surface-functionalized, Two-dimensional Polymer Electrochromic Layers As Ultrafast, Multi-state Infrared Optical Gates.
  1. Home
  3. Surface-functionalized, Two-dimensional Polymer Electrochromic Layers As Ultrafast, Multi-state Infrared Optical Gates.

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Surface-Functionalized, Two-Dimensional Polymer Electrochromic Layers as Ultrafast, Multi-State Infrared Optical

Dibakar Das1, A M Mahmudul Hasan1, Rupam Roy1

  • 1Department of Chemistry, Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, University of Florida, Gainesville, Florida 32611, United States.

Journal of the American Chemical Society
|March 20, 2026

View abstract on PubMed

Summary
This summary is machine-generated.

Surface-engineered two-dimensional polymers (2DPs) with ionophilic pores achieve significantly faster switching speeds in electrochromic devices. This breakthrough enables new possibilities for adaptive optics and photonic information processing.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Optoelectronics

Background:

  • Electrochromic devices offer great potential but are limited by slow switching speeds.
  • Developing advanced materials is crucial for overcoming these limitations in real-world applications.

Purpose of the Study:

  • To report surface-engineered two-dimensional polymers (2DPs) with ionophilic pores for enhanced electrochromic device performance.
  • To demonstrate unprecedented switching speeds and multistate optical responses in solid-state devices.

Main Methods:

  • Synthesized crystalline donor-acceptor 2DPs functionalized with ethylene glycol oligomers.
  • Compared performance with alkyl-functionalized 2DPs.
  • Investigated rapid switching under oxidative and reductive conditions.

Main Results:

  • Achieved 4x faster switching speeds (t_c = 320 ms) and 3x higher coloration efficiency (491 cm^2 C^-1) with ethylene glycol functionalized 2DPs.
  • Demonstrated robust, stable multistate infrared absorption and optical responses.
  • Leveraged surface-functionalized 2DPs as multistate infrared logic gates.

Conclusions:

  • Surface engineering of nanoporous crystalline lattices co-optimizes electronic and ionic conductivity for rapid electrochromic switching.
  • Surface-engineered 2DPs are promising for electrochromic coatings and photonic information processing.
  • The demonstrated multistate infrared characteristics highlight their utility in integrated optoelectronic circuits.