Effect of Annealing Temperature on Memristive Characteristics of Cu/Parylene–MoOx/ITO Structures

IF 0.8 Q3 Engineering

Nanotechnologies in Russia Pub Date : 2026-09-09 DOI:10.1134/S2635167626603086

A. D. Trofimov, A. A. Nesmelov, D. R. Streltsov, A. Yu. Vdovichenko, S. A. Zavyalov, A. N. Matsukatova, O. A. Kondratev, A. V. Emelyanov

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引用次数: 0

Abstract

Organic and hybrid memristors are attractive for use as synapses in bio-like neuromorphic computing systems. Nanocomposite structures based on poly-p-xylylene (PPX) nanoparticles with molybdenum oxide exhibit promising memristive properties. Annealing of PPX-based nanocomposite structures after synthesis significantly improves their memristive characteristics, but a detailed study of the effect of annealing temperature on memristive structures has not been conducted. In this paper, the influence of annealing temperature (from 150 to 400°C) on the structural features and electrical properties of the Cu/PPX–MoO_x/ITO structure was studied in detail. Thermal annealing at temperatures of 150, 200 and 250°C leads to a gradual compaction of the PPX matrix, which causes a slight increase in resistive switching voltages and a slight decrease in the resistance window, worsens the endurance to cyclic switching and the stability of resistive states, while a decrease in the spread of memristive characteristics is observed. Temperatures of 300°C and above lead to thermal destruction of PPX, and at temperatures above 350°C, crystallization of MoO_x occurs. It is found that the optimal annealing temperature for memristive structures is Cu/PPX–MoO_x/ITO is in the range of 150–200°C.

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退火温度对Cu/苝- moox /ITO结构记忆电阻特性的影响

有机和混合记忆电阻器在类生物神经形态计算系统中用作突触是有吸引力的。基于聚对二甲苯（PPX）纳米颗粒与氧化钼的纳米复合结构具有良好的记忆电阻性能。对合成后的ppx基纳米复合材料结构进行退火处理，可以显著改善其忆阻特性，但尚未对退火温度对忆阻结构的影响进行详细的研究。本文详细研究了退火温度（150 ~ 400℃）对Cu/ PPX-MoOx /ITO结构特征和电学性能的影响。150、200和250℃的热处理导致PPX基体逐渐压实，导致电阻开关电压略有升高，电阻窗略有减小，使循环开关的耐久性和电阻状态的稳定性变差，而记忆电阻特性的扩展减小。300℃及以上的温度会导致PPX的热破坏，350℃以上的温度会发生MoOx的结晶。结果表明，Cu/ PPX-MoOx /ITO的最佳退火温度为150 ~ 200℃。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nanotechnologies in Russia NANOSCIENCE & NANOTECHNOLOGY-

CiteScore

1.20

自引率

0.00%

发文量

期刊介绍： Nanobiotechnology Reports publishes interdisciplinary research articles on fundamental aspects of the structure and properties of nanoscale objects and nanomaterials, polymeric and bioorganic molecules, and supramolecular and biohybrid complexes, as well as articles that discuss technologies for their preparation and processing, and practical implementation of products, devices, and nature-like systems based on them. The journal publishes original articles and reviews that meet the highest scientific quality standards in the following areas of science and technology studies: self-organizing structures and nanoassemblies; nanostructures, including nanotubes; functional and structural nanomaterials; polymeric, bioorganic, and hybrid nanomaterials; devices and products based on nanomaterials and nanotechnology; nanobiology and genetics, and omics technologies; nanobiomedicine and nanopharmaceutics; nanoelectronics and neuromorphic computing systems; neurocognitive systems and technologies; nanophotonics; natural science methods in a study of cultural heritage items; metrology, standardization, and monitoring in nanotechnology.