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Research Article

Patternable and transferable silver nanowire conductors via plasma-enhanced cryo-transferring process towards highly stretchable and transparent capacitive touch sensor array

Yifan Gu, Zhiguang Qiu, Simu Zhu, Hao Lu, Lisha Peng, Gaofan Zhang, Ziyi Wu, Xuchun Gui, Zong Qin, Bo-ru Yang( )
State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510006, China
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Graphical Abstract

This work developed a plasma-enhanced cryo-transferring process for fabricating silver nanowire (AgNW)-embedded stretchable transparent electrodes (STE) with arbitrary patterns. Owing to the plasma-induced sintering, the intact transferring of AgNW network was achieved, which promised the as-prepared patternable STEs with remarkable mechanical performance and great potential for further applications in stretchable electronics.

Abstract

Stretchable transparent electrode (STE) plays a key role in numerous emerging applications as an indispensable component for future stretchable devices. The embedded STE, as a promising candidate, possesses balanced performances and facile preparation procedures. However, it still suffers from the defects of conductive materials caused by the transferring, which results in the irreversible failure of devices. In this work, a patternable silver nanowire (AgNW) STE was fabricated by a plasma-enhanced cryo-transferring (PEC-transferring) process. Owing to the plasma-induced sintering, the AgNW network obtained remarkable improvement in robustness, which ensured the intact network after transferring and thus led to superior tensile electrical properties of the STE. Furthermore, serpentine patterns were utilized to optimize the tensile electrical properties of the STE, which achieved a figure of merit of 292.8 and 150% resistance changing under 50% strain. As a practical application, a 4 × 3 array of the mutual-capacitive type stretchable touch sensors was demonstrated for future touch sensors in stretchable devices. The PEC-transferring process opened a new avenue for patternable embedded STEs and exhibited its high potential in wearable electronics and the Internet of Thing devices.

Keywords

stretchable transparent electrodesilver nanowireplasma treatmenttransferring processserpentine

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Nano Research
Volume 16 Issue 8,
August 2023
Pages 11303-11311
DOI: 10.1007/s12274-023-5832-6
Cite this article:
Gu Y, Qiu Z, Zhu S, et al. Patternable and transferable silver nanowire conductors via plasma-enhanced cryo-transferring process towards highly stretchable and transparent capacitive touch sensor array. Nano Research, 2023, 16(8): 11303-11311. https://doi.org/10.1007/s12274-023-5832-6
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Received: 28 February 2021
Revised: 22 March 2021
Accepted: 07 April 2021
Published: 23 June 2023
© Tsinghua University Press 2023
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