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Flexible Transient Resistive Memory Based on Biodegradable Composites.

Lu Wang¹, Yukai Zhang¹, Peng Zhang¹

¹Heilongjiang Provincial Key Laboratory of Micronano Sensitive Devices and Systems, School of Electronic Engineering, Heilongjiang University, Harbin 150080, China.

Nanomaterials (Basel, Switzerland)

|October 14, 2022

Summary

Researchers developed a biodegradable resistive random-access memory (RRAM) using egg protein and graphene quantum dots. This eco-friendly device offers high performance and potential for green electronics and biomedical applications.

Keywords:

biological materials graphene quantum dots physical transient “OR gate”

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Area of Science:

Materials Science
Nanotechnology
Electronics Engineering

Background:

Transient electronics offer sustainable solutions for green electronics and biomedical devices.
Developing biodegradable materials with high performance for electronic devices remains a challenge.

Purpose of the Study:

To fabricate a physically transient resistive random-access memory (RRAM) device using egg protein and graphene quantum dots (GQDs).
To evaluate the memory characteristics, logic operation capabilities, and biodegradability of the fabricated RRAM device.

Main Methods:

Fabrication of a sandwich-structured RRAM device with Al/EA:GQD/ITO layers.
Characterization of the device's memory performance, including write-once-multiple-read behavior and switching current ratio.
Demonstration of logic operations using the GQD's photosensitivity.
Assessment of the device's physical transient behavior and biodegradability in deionized water.

Main Results:

The Al/EA:GQD/ITO device exhibited a write-once-multiple-read memory characteristic.
Graphene quantum dots (GQDs) enhanced the device's switching current ratio.
An "OR gate" logic operation was successfully demonstrated by leveraging the photosensitivity of GQDs.
The device showed physical transient behavior and biodegradability upon dissolution in deionized water.

Conclusions:

The developed egg protein and GQD composite is a promising material for transient electronic memory elements.
The device demonstrates potential for constructing eco-friendly and biodegradable transient electronic systems.
This work contributes to the advancement of green electronics and sustainable biomedical devices.