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Related Experiment Video

Updated: Feb 23, 2026

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

Published on: April 4, 2017

Localized Surface Plasmon Resonance-Mediated Charge Trapping/Detrapping for Core-Shell Nanorod-Based Optical Memory

Li Zhou, Su-Ting Han, Shiwei Shu

¹Department of Physics and Materials Science, City University of Hong Kong , Hong Kong, China.

ACS Applied Materials & Interfaces

|September 12, 2017

Summary

This summary is machine-generated.

Researchers developed organic optical memory devices using gold-silver core-shell nanorods. These devices offer dual functionality for light sensing and data storage, advancing Internet of Things (IoT) applications.

Keywords:

Au@Ag nanorods LSPR multilevel data storage organic memory phototunable

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Area of Science:

Materials Science
Nanotechnology
Optoelectronics

Background:

Moore's Law drives miniaturization, requiring versatile single devices for the Internet of Things (IoT).
Existing devices often lack integrated light sensing and data storage capabilities.

Purpose of the Study:

To propose and investigate organic optical memory devices with dual optoelectronic functionality.
To explore the use of gold-silver (Au@Ag) core-shell nanorods (NRs) for enhanced memory performance.

Main Methods:

Fabrication of Au@Ag core-shell nanorods with controlled morphology, size, and concentration.
Systematic study of phototunable memory behavior by varying silver shell thickness.
Utilizing localized surface plasmon resonance (LSPR) simulations to understand device mechanisms.

Main Results:

Demonstrated a large memory window of up to 19.7 V in the Au@Ag NRs-based memory device.
Achieved phototunable memory properties and multilevel data storage assisted by light.
Experimental and simulation results confirmed LSPR as the origin of the phototunable memory effect.

Conclusions:

Au@Ag core-shell NRs enable high-performance organic optical memory devices with dual functionality.
The phototunable memory property offers a new strategy for advanced optoelectronic applications.
These findings contribute to the development of next-generation IoT devices.