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Related Experiment Video

Updated: May 25, 2026

Using Polystyrene-block-poly(acrylic acid)-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization
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Additive-driven assembly of block copolymer-nanoparticle hybrid materials for solution processable floating gate

Qingshuo Wei1, Ying Lin, Eric R Anderson

  • 1Department of Polymer Science and Engineering, University of Massachusetts-Amherst, 120 Governors Drive, Amherst, Massachusetts 01003, United States.

ACS Nano
|January 26, 2012
PubMed
Summary

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Researchers developed novel floating gate memory devices using gold nanoparticle/block copolymer hybrid films. This solution-processed approach allows for tunable memory characteristics and scalable device fabrication.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Electronics

Background:

  • Floating gate memory devices are crucial for non-volatile data storage.
  • Developing efficient and scalable charge trapping layers is essential for advanced memory applications.

Purpose of the Study:

  • To fabricate floating gate memory devices using well-ordered gold nanoparticle/block copolymer hybrid films as charge trapping layers.
  • To investigate the effect of gold nanoparticle concentration on memory characteristics.
  • To demonstrate a solution-processable method for creating ordered charge storage layers.

Main Methods:

  • Fabrication of hybrid films via self-assembly of gold nanoparticles within a poly(styrene-b-2-vinyl pyridine) block copolymer.
  • Characterization of the charge trapping layers and memory device performance.

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  • Tuning memory window characteristics by controlling gold nanoparticle concentration.

    • Main Results:

    • Well-ordered gold nanoparticle/block copolymer hybrid films were achieved with up to 40 wt % gold nanoparticle loading.
    • The memory window characteristics were successfully tuned by varying the gold nanoparticle concentration.
    • Solution processing enabled the fabrication of ordered charge storage layers.

    Conclusions:

    • The developed hybrid films offer a promising approach for creating efficient charge trapping layers in floating gate memory devices.
    • This method is scalable for large-area and high-density device fabrication using roll-to-roll processing.
    • The selective hydrogen bonding between gold nanoparticles and the block copolymer facilitates the formation of well-ordered structures.