An Ultradurable and Uniform Cu Electrode by Blending Carbon Nanotube Fillers in Copper‐Based Metal–Organic Decomposition Ink for Flexible Printed Electronics,Advanced Materials Interfaces

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An Ultradurable and Uniform Cu Electrode by Blending Carbon Nanotube Fillers in Copper‐Based Metal–Organic Decomposition Ink for Flexible Printed Electronics
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2018-06-19 , DOI: 10.1002/admi.201800502
Kwang-dong Seong ₁ , Jong Min Kim ₁ , Jeongmin Kang ₁ , Minsik Hwang ₁ , Chaedong Lee ₁ , Yuanzhe Piao _{1,

2}

Affiliation

Cu‐based metal–organic decomposition (MOD) ink is widely studied for printed electronics owing to its cost‐effectiveness and low‐temperature processing. The main purpose of using a low‐temperature processible Cu MOD ink is to fabricate flexible wearable devices. However, most researches are focused on enhancing the uniformity and conductivity of the formed electrode rather than increasing the durability. This paper presents an ultradurable and uniform Cu flexible electrode using a multiwalled carbon nanotube (MWCNT) filler‐blended Cu MOD ink. This MOD ink is synthesized through a facile sonication‐based mixing method. The MWCNT enhances not only the uniformity of the Cu electrode by providing a heterogeneous nucleation site but also the durability of the electrode due to mechanical robustness of MWCNT. With an optimum MWCNT content (1.0 wt%), the Cu/MWCNT film exhibits a resistivity of 25.31 µΩ cm and a resistance increase of only 1.66 times after the 150 000 times bending test with 2.6 mm of bending radius. It is expected that this Cu/MWCNT nanocomposite electrode can be used for practical applications because of its easy preparation, and its improved quality and durability.

中文翻译：

在铜基金属有机分解油墨中混合碳纳米管填料制成的超耐用且均匀的铜电极，用于柔性印刷电子

铜基金属有机分解（MOD）墨水因其成本效益和低温处理而得到了广泛的研究。使用低温可加工Cu MOD墨水的主要目的是制造柔性可穿戴设备。然而，大多数研究集中在增强所形成的电极的均匀性和导电性而不是增加耐久性上。本文提出了一种使用多壁碳纳米管（MWCNT）填充铜的MOD墨水的超耐久且均匀的Cu柔性电极。这种MOD墨水是通过基于超声的简便混合方法合成的。MWCNT不仅通过提供异质形核位点提高了Cu电极的均匀性，而且由于MWCNT的机械强度而提高了电极的耐用性。以最佳的MWCNT含量（1.0 wt％），在弯曲半径为2.6 mm的150 000次弯曲试验后，Cu / MWCNT膜的电阻率为25.31 µΩ cm，电阻仅增加了1.66倍。期望该Cu / MWCNT纳米复合电极由于其易于制备以及改善的质量和耐久性而可用于实际应用。

更新日期：2018-06-19

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