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Twisting patterning: Electrochemical Deposition of Stretchable Spiral Metallic Conductor on Elastic Polymer Threads

Abstract

A twisting patterning process is developed to fabricate spring-like 3D stretchable metallic conductor on elastic threads. The process follows steps of thread twisting, catalyst spraying and electrochemical deposition of metal to prepare thick metallic spiral coiled on thread surface. The prepared spiral conductor is highly stretchable with pure metal conductivity (5.76 μΩ•cm using a combinative metal layer of gold, copper and nickel), low resistance (about 0.1 Ω per centimeter) and extremely high resistance stability when stretching (<3% resistance fluctuation at the strain lower than 100%), so it is quite appropriate to connect electronic components in stretchable devices. Double parallel metallic spiral can be prepared on single thread, so the input and output of current can be achieved using one thread. Multi-spirals pattern with different spiral styles can also be prepared on single thread to form specific circuit, Bonded with functional components, the whole device is obtained in thread form. In addition, the inductance of the spring-like conductor shows an increase when stretching and a decrease when bending, indicating potential applications on tension and bending detection.

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Publication details

The article was received on 27 Nov 2017, accepted on 04 Jan 2018 and first published on 04 Jan 2018


Article type: Paper
DOI: 10.1039/C7TC05430K
Citation: J. Mater. Chem. C, 2018, Accepted Manuscript
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    Twisting patterning: Electrochemical Deposition of Stretchable Spiral Metallic Conductor on Elastic Polymer Threads

    Y. Chang, T. Pan and Z. Yang, J. Mater. Chem. C, 2018, Accepted Manuscript , DOI: 10.1039/C7TC05430K

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