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  1. Home
  3. Ultra-narrow Donor-acceptor Nanoribbons.
  1. Home
  3. Ultra-narrow Donor-acceptor Nanoribbons.

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Ultra-narrow donor-acceptor nanoribbons.

James Lawrence1,2, Luka Đorđević3,4, Fabienne Bachtiger5,6

  • 1Department of Chemistry, University of Warwick, Coventry, UK. jmlaw91@nus.edu.sg.

Nature Communications
|April 23, 2026

View abstract on PubMed

Summary
This summary is machine-generated.

Researchers synthesized ultra-narrow donor-acceptor nanoribbons on surfaces. This new method precisely controls the composition and electronic properties of these π-conjugated nanostructures for advanced optoelectronics.

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Area of Science:

  • Materials Science
  • Organic Electronics
  • Nanotechnology

Background:

  • Donor-acceptor (D-A) architectures are crucial for high-performance conjugated polymers.
  • Their application in atomically precise nanoribbons is largely unexplored.

Purpose of the Study:

  • To report the on-surface synthesis of ultra-narrow D-A nanoribbons.
  • To explore their structural and electronic properties.
  • To establish a platform for engineering π-conjugated nanostructures.

Main Methods:

  • On-surface synthesis using complementary brominated precursors (donor: peri-xanthenoxanthene, acceptor: anthanthrone).
  • High-resolution scanning tunnelling microscopy (STM), non-contact atomic force microscopy (AFM), and scanning tunnelling spectroscopy (STS).
  • Gas-phase density functional theory (DFT) calculations and a linear combination of molecular orbitals (LCAO) model.

Main Results:

  • Successful synthesis of well-defined donor-only, acceptor-only, and mixed D-A nanoribbons.
  • Submolecular structural and electronic features were resolved.
  • Electronic properties were tuneable by monomer sequence and length.
  • Experimental results align with DFT and LCAO models.

Conclusions:

  • A bottom-up synthetic strategy provides precise control over nanoribbon composition and functionality.
  • This approach enables the engineering of π-conjugated nanostructures with tailored optoelectronic properties.
  • Opens new avenues for designing advanced organic electronic materials.