Cerium Oxide Nanoparticles Embedded with Carbon Matrix for a Digital-Analog Integrated Memristor.

Area of Science:

• Materials Science
• Nanotechnology
• Electrical Engineering

Background:

• Resistive switching (RS) memristors are crucial for next-generation memory and neuromorphic computing.
• Integrating digital and analog RS in a single device offers enhanced functionality.

Purpose of the Study:

• To develop and characterize a CeO2-rGO nanocomposite memristor.
• To investigate its potential for multifunctional memory and neuromorphic applications.

Main Methods:

• Hydrothermal synthesis of CeO2-rGO nanocomposite active layer.
• Fabrication and electrical characterization of bipolar resistive switching memristor devices.

Main Results:

• The CeO2-rGO memristor exhibits stable, low-voltage, forming-free bipolar RS.
• Demonstrates a large memory window, reliable endurance, and retention.
• Achieves multilevel conductance states through coexistence of digital and analog switching.

Conclusions:

• CeO2-rGO nanocomposites show promise for next-generation nonvolatile memory.
• The device bridges conventional data storage and neuromorphic functionalities.
• Potential for high-density storage and synaptic emulation applications.