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Updated: Jun 20, 2026
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High Resolution Physical Characterization of Single Metallic Nanoparticles
Published on: June 28, 2019
Gold nanoparticle charge trapping and relation to organic polymer memory devices
D Prime1, S Paul, P W Josephs-Franks
1Emerging Technologies Research Centre, De Montfort University, Hawthorn Building, The Gateway, Leicester LE1 9BH, UK.
Summary
Nanoparticle-based polymer memory devices (PMDs) offer a low-cost, high-speed alternative to silicon memory. New research demonstrates successful charge trapping in gold nanoparticles within these devices.
Area of Science:
- Materials Science
- Electrical Engineering
- Nanotechnology
Background:
- Nanoparticle-based polymer memory devices (PMDs) present a viable alternative to traditional silicon-based electronics.
- These devices offer advantages such as high operating speeds, simplified structures, and reduced manufacturing costs.
Purpose of the Study:
- To review the current status and challenges in the field of nanoparticle PMDs.
- To present new experimental data on the electrical charging characteristics of gold nanoparticles in memory devices.
Main Methods:
- Fabrication and characterization of metal-insulator-semiconductor (MIS) capacitors incorporating gold nanoparticles.
- Electrical measurements to assess charge trapping under applied electric fields.
Main Results:
- Demonstrated successful charging of gold nanoparticles within MIS capacitors.
- Achieved a trapped charge density of 3.3 x 10^12 cm^-2 attributed to the nanoparticles.
Conclusions:
- Nanoparticle charging is feasible in PMDs, confirming their potential for electronic memory applications.
- Further research is needed to address existing challenges and optimize nanoparticle PMD performance.
