Configurable switching behavior in polymer-based resistive memories by adopting unique electrode/electrolyte...

Area of Science:

• Materials Science
• Electrical Engineering
• Nanotechnology

Background:

• Resistive switching memory devices are crucial for next-generation electronics.
• Understanding the influence of device configuration on polymer-based memory is essential for optimization.

Purpose of the Study:

• To investigate resistive switching characteristics in poly(methyl methacrylate) (PMMA) devices.
• To analyze the impact of different electrode/electrolyte arrangements on device performance.
• To elucidate the underlying conduction mechanisms and filament formation.

Main Methods:

• Fabrication of PMMA-based devices with four distinct electrode/electrolyte configurations.
• Current-voltage (I-V) measurements to assess nonvolatile memory behavior.
• Depth-profiling X-ray photoelectron spectroscopy (XPS) to study conducting filament formation.

Main Results:

• All PMMA devices exhibited nonvolatile memory with high ON/OFF ratios (10^5-10^7).
• Al/PMMA/Al devices showed trap-controlled space charge limited conduction (SCLC).
• Ag-containing devices displayed ohmic behavior influencing resistive switching.
• XPS confirmed conducting filament formation in PMMA devices.

Conclusions:

• Device configuration critically influences resistive switching mechanisms in PMMA-based memory.
• Understanding these mechanisms aids in designing advanced polymer memory devices.
• Simple rearrangement of device geometry offers a pathway for tuning memory characteristics.