Insight into Facile Ion Diffusion in Resistive Switching Medium toward Low Operating Voltage Memory.

Area of Science:

• Materials Science
• Nanotechnology
• Solid-State Electronics

Background:

• Global data storage growth necessitates energy-efficient memory solutions.
• Low power consumption and high performance are critical for next-generation memory devices.

Purpose of the Study:

• To investigate Graphdiyne oxide (GDYO) for low switching voltage memristor applications.
• To understand the role of GDYO's structure in resistive switching behavior.

Main Methods:

• Fabrication and characterization of Ag/GDYO/Au memristors.
• Theoretical calculations of ion diffusion energy within GDYO.
• Analysis of resistive switching characteristics at different GDYO thicknesses.

Main Results:

• GDYO exhibits facile resistive switching behavior.
• Ultralow operating voltage of 0.25 V achieved with 5 nm GDYO.
• Multilevel memory with an ON/OFF ratio up to 10^4 demonstrated with 29 nm GDYO.
• Low ion diffusion energy (Ag ion: 0.11 eV, oxygen functional group: 0.6 eV) within GDYO.

Conclusions:

• GDYO is a promising material for low-voltage, high-performance memristors.
• The intrinsic pore structure of GDYO facilitates ion diffusion, reducing operating voltage.
• GDYO-based devices hold potential for opto-memristors, artificial synapses, and neuromorphic computing.