基于 Ni@Ag Core@shell 纳米粒子的涂层的导电性取决于银壳厚度。

IF 4.9 Q2 NANOSCIENCE & NANOTECHNOLOGY
Nanotechnology, Science and Applications Pub Date : 2023-12-27 eCollection Date: 2023-01-01 DOI:10.2147/NSA.S435432
Anna Pajor-Świerzy, Katarzyna Kozak, Dorota Duraczyńska, Agata Wiertel-Pochopień, Jan Zawała, Krzysztof Szczepanowicz
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引用次数: 0

摘要

介绍:迄今为止,基于金属纳米颗粒的油墨已被广泛用于利用印刷技术制造电子电路和器件。本研究旨在分析镍@银核@壳(Ni@Ag)纳米粒子(NPs)银壳厚度对沉积涂层的制造和导电性能的影响:方法:建立了不同银壳厚度的 Ni@Ag NPs 的合成工艺。分析了合成的 Ni@Ag 纳米粒子的理化性质(尺寸、对聚集过程的稳定性)。以含有不同银壳厚度的 Ni@Ag NPs 墨水为基础制作了薄膜,并在 120-300 °C 的温度范围和 15 至 90 分钟的时间内进行了烧结。评估了其导电性能与应用温度、时间以及银壳厚度的关系:结果:Ni NPs 的银壳厚度分别为 10、20、30、35、45 和 55 nm。所获得的 NPs 涂层的电阻率取决于银壳厚度和烧结温度。在 300 °C 下烧结后,当银壳厚度从 10 纳米增加到 55 纳米时,电阻率值从约 100 µΩ-cm 降至 9 µΩ-cm,降幅最大(最佳烧结时间为 60 分钟)。在最低烧结温度(120 °C)下,银壳厚度为 45 和 55 nm 的 Ni@Ag NPs 薄膜的导电率最高(约为块状镍导电率的 50%):烧结薄膜的电阻率分析表明,银壳较厚的 Ni@Ag NPs 所形成的镀层具有更高的导电率;此外,与镍 NPs 相比,银壳较厚的镀层具有更高的导电率和更低的熔点,因此可以降低烧结温度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Silver Shell Thickness-Dependent Conductivity of Coatings Based on Ni@Ag Core@shell Nanoparticles.

Introductions: Ink based on metallic nanoparticles has been widely used so far for the fabrication of electronic circuits and devices using printing technology. This study aimed at the analysis of the effect of the silver shell thickness of nickel@silver core@shell (Ni@Ag) nanoparticles (NPs) on the fabrication and conductive properties of deposited coatings.

Methods: The process of the synthesis of Ni@Ag NPs with various silver shell thicknesses was developed. The physicochemical properties (size, stability against aggregation process) of synthesized Ni@Ag nanoparticles were analyzed. The films based on ink containing Ni@Ag NPs with different silver shell thicknesses were fabricated and sintered in a temperature range of 120-300 °C and at times from 15 to 90 min. The dependence of their conductive properties on the applied temperature and time as well as silver shell thickness was evaluated.

Results: Ni NPs were coated with 10, 20, 30, 35, 45, and 55 nm silver shell thickness. The resistivity of coatings based on obtained NPs depends on the thickness of the Ag shell and the sintering temperature. After sintering at 300 °C, the highest decrease in its value (at an optimal sintering time of 60 min) from about 100 µΩ·cm to 9 µΩ·cm was observed when the thickness of the shell increased from 10 to 55 nm. At the lowest sintering temperature (120 °C) the highest conductivity (about 50% of that for bulk nickel) was obtained for films based on Ni@Ag NPs with 45 and 55 nm of the silver shell thickness.

Discussions: The analysis of the resistivity of the sintered films showed that higher conductivity was obtained for the coatings formed from Ni@Ag NPs with the thicker Ag shell; moreover, thicker shells allowed a lowering of sintering temperature due to higher conductivity and a lower melting point of silver in comparison to nickel NPs.

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来源期刊
Nanotechnology, Science and Applications
Nanotechnology, Science and Applications NANOSCIENCE & NANOTECHNOLOGY-
CiteScore
11.70
自引率
0.00%
发文量
3
审稿时长
16 weeks
期刊介绍: Nanotechnology, Science and Applications is an international, peer-reviewed, Open Access journal that focuses on the science of nanotechnology in a wide range of industrial and academic applications. The journal is characterized by the rapid reporting of reviews, original research, and application studies across all sectors, including engineering, optics, bio-medicine, cosmetics, textiles, resource sustainability and science. Applied research into nano-materials, particles, nano-structures and fabrication, diagnostics and analytics, drug delivery and toxicology constitute the primary direction of the journal.
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