Abstract

In this paper, natural organic honey embedded with carbon nanotubes (CNTs) was studied as a resistive switching material for biodegradable nonvolatile memory in emerging neuromorphic systems. CNTs were dispersed in a honey-water solution with the concentration of 0.2 wt.% CNT and 30 wt.% honey. The final honey-CNT-water mixture was spin-coated and dried into a thin film sandwiched in between Cu bottom electrode and Al top electrode to form a honey-CNT based resistive switching memory (RSM). Surface morphology, electrical characteristics and current conduction mechanism were investigated. The results show that although CNTs formed agglomerations in the dried honey-CNT film, both switching speed and the stability in SET and RESET process of honey-CNT RSM were improved. The mechanism of current conduction in CNT is governed by Ohm's law in low-resistance state and the low-voltage range in high-resistance state, but transits to the space charge limited conduction at high voltages approaching the SET voltage.

Department(s)

Electrical and Computer Engineering

Comments

U.S. Department of Energy, Grant 2104976

Keywords and Phrases

biodegradable; carbon nanotube; honey; neuromorphic system; nonvolatile memory; resistive switching

International Standard Serial Number (ISSN)

1361-6528; 0957-4484

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2025 IOP Publishing, All rights reserved.

Publication Date

03 Dec 2022

PubMed ID

36063797

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