Flexible Conductive Film Based on Copper Nanowires and Its Sensing Applications

Li Qian; Wen Shijie; Zhang Tianyi

doi:10.18535/ijsrm/v13i06.ec02

Abstract

Copper nanowires have attracted widespread attention due to the abundant availability of raw materials in nature and their high conductivity. Compared with traditional materials such as metals and semiconductors used in sensors, copper nanowire materials possess characteristics such as high thermal conductivity, low heat capacity, resistance to bending, low cost, and better ductility. Copper nanowires were synthesized through the hydrothermal method and uniformly dispersed on the surface of acrylate polymer to form a flexible conductive film, which has excellent flexibility, conductivity, and light transmittance. This film was further used for temperature sensing, and its performance was tested. The flexible conductive film was combined with thermochromic materials to prepare an electrophoretic color-changing device. By adjusting the applied voltage and current, the temperature changes, thereby causing the color change of the thermochromic material.

Keywords

Copper nanowiresTemperature sensorElectrochromic deviceFlexible film

References

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[refR-2] Huang Q J, Zhu Y. Patterning of metal nanowire networks: methods and applications[J]. Acs Applied Materials & Interfaces, 2021, 13(51): 60736-60762.Google Scholar ↗

[refR-3] Xu Y T, Wang J J, Sun L J, et al. Top transparent electrodes for fabricating semitransparent organic and perovskite solar cells[J]. Journal of Materials Chemistry C, 2021, 9(29): 9102-9123.Google Scholar ↗

[refR-4] Nguyen V H, Papanastasiou D T, Resende J, et al. Advances in flexible metallic transparent electrodes[J]. Small, 2022, 18(19): 2106006.Google Scholar ↗

[refR-5] Dou L, Cui F, Yu Y, et al. Solution-processed copper/reduced-graphene-oxide core/shell nanowire transparent conductors[J]. ACS Nano, 2016, 10(2): 2600-2606.Google Scholar ↗

[refR-6] Feng Y, Zhu J. Copper nanomaterials and assemblies for soft electronics[J]. Science China Materials, 2019, 62(11): 1679-1708Google Scholar ↗

[refR-7] Cao A Y.Hydrophobic, Structure-tunable Cu Nanowire@graphene Core-shell Aerogels for Piezoresistive Pressure Sensing[J]. Nanotechnology,2019Google Scholar ↗

[refR-8] Rihan Wu,Jun Ai. Synthesis of fluorescent copper nanoparticles T<sub>(30)</sub>-base protection and its Mn<sup>2+</sup> detection and temperature sensing[J]. Inorganic and Nano-Metal Chemistry,2024,54(7):603-610Google Scholar ↗

[refR-9] Zhang L, An L, Wang Y H, et al. Thermal enhancement and shape stabilization of a phase-change energy-storage material via copper nanowire aerogel[J]. Chemical Engineering Journal, 2019, 373: 857-869.Google Scholar ↗

[refR-10] Zhang L Y, Yin J S, Yu W, et al. Great thermal conductivity enhancement of silicone composite with ultra-long copper nanowires[J]. Nanoscale Research Letters, 2017, DOI: 10.1186/s11671-017-2237-z.DOI ↗Google Scholar ↗

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[refR-12] Michael T B, Shilpi R P, Timothy S E, et al. Thermal conduction in vertically-aligned copper nanowire arrays and composites[J]. ACS Applied Materials & Interfaces, 2015, 7(34): 19251-19259.Google Scholar ↗