Using a nanosecond laser to pattern copper nanowire-based flexible electrodes: From simulation to practical application

Tran, Nguyen-Hung; Hoang, Ha-My; Duong, Thanh-Hung; Kim, Hyun-Chul

doi:10.1016/j.apsusc.2020.146216

Cited by 12 publications

(13 citation statements)

References 30 publications

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“…Upon the deposition of Cu NWs onto PDMS, the film is nonconductive because the NWs are covered with HDA and oxide . To obtain the conductivity of the Cu NW network, glacial acetic acid was used to treat the Cu NW film . When the spraying duration is changed from 1 to 5 s, the sheet resistance of the electrode can be controlled in the range of 7–93 Ω/sq, corresponding to transmittances at 550 nm wavelength from 41.1% to 90.8% (Figure d).…”

Section: Results and Discussionmentioning

confidence: 99%

“…43 To obtain the conductivity of the Cu NW network, glacial acetic acid was used to treat the Cu NW film. 46 When the spraying duration is changed from 1 to 5 s, the sheet resistance of the electrode can be controlled in the range of 7− 93 Ω/sq, corresponding to transmittances at 550 nm wavelength from 41.1% to 90.8% (Figure 2d). In addition, the spray-coating method helps the Cu NWs have a good stretchable function of the electrode, and this phenomenon will be discussed further in the following section.…”

Section: Resultsmentioning

confidence: 99%

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Copper Nanowire-Sealed Titanium Dioxide/Poly(dimethylsiloxane) Electrode with an In-Plane Wavy Structure for a Stretchable Capacitive Strain Sensor

Tran

Lee

2022

ACS Appl. Nano Mater.

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Although copper nanowire (Cu NW) has been considered to be one of the most promising conductive materials with low price and high conductivity, there have been a modest number of studies on Cu NW for stretchable applications. One of the fundamental problems that has limited the application of Cu NW is degradation of the conductivity due to fast oxidation. In addition, a complicated fabrication process, poor structure design, and low durability have also prevented the practical application of Cu NW. We propose an all-solution processing method to fabricate a Cu NW-based stretchable electrode with improved reliability. When Cu NWs were sealed with titanium dioxide and poly(dimethylsiloxane), the electrode exhibited long-term electrical stability. The stretchable electrode showed a low resistance change (ΔR/R 0 ), 0.2 under an applied tensile stress (ε) of up to 50%, and ΔR/R 0 increased only 10% after 1000 stretching cycles at ε of 30%. The sealed Cu NWs were applied to an interdigitated capacitive strain sensor (ICSS). The fabricated ICSS showed a linear response of the gauge factor (GF) with ε = −1.47 from theoretical calculations and −1.23 from the experimental results. Furthermore, the device displayed a stable sensing performance during a repeated stretching test at ε of 30% for 400 cycles.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Copper Nanowire-Sealed Titanium Dioxide/Poly(dimethylsiloxane) Electrode with an In-Plane Wavy Structure for a Stretchable Capacitive Strain Sensor

Tran

Lee

2022

ACS Appl. Nano Mater.

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“…Several parameters, such as laser wavelength, laser power, pulse duration, and laser fluence, must be carefully controlled to decrease residual particles and avoid damaging substrates by the thermal energy of the laser . Several research groups have performed extensive studies on the laser ablation of MNWs through both simulation and experiment. ,, For example, Pothoven performed laser ablation tests on AgNW-based TCFs using three different laser wavelengths (i.e., 1064, 532, and 355 nm). Ablated patterns with an average ablating line width of ∼35 μm were reported.…”

Section: Subtractive Patterning Methodsmentioning

confidence: 99%

“…88 Several research groups have performed extensive studies on the laser ablation of MNWs through both simulation and experiment. 82,89,90 For example, Pothoven performed laser ablation tests on AgNW-based TCFs using three different laser wavelengths (i.e., 1064, 532, and 355 nm). Ablated patterns with an average ablating line width of ∼35 μm were reported.…”

Section: Subtractive Patterning Methodsmentioning

confidence: 99%

Patterning of Metal Nanowire Networks: Methods and Applications

Huang

Zhu

2021

ACS Appl. Mater. Interfaces

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With the advance in flexible and stretchable electronics, one-dimensional nanomaterials such as metal nanowires have drawn much attention in the past 10 years or so. Metal nanowires, especially silver nanowires, have been recognized as promising candidate materials for flexible and stretchable electronics. Owing to their high electrical conductivity and high aspect ratio, metal nanowires can form electrical percolation networks, maintaining high electrical conductivity under deformation (e.g., bending and stretching). Apart from coating metal nanowires for making large-area transparent conductive films, many applications require patterned metal nanowires as electrodes and interconnects. Precise patterning of metal nanowire networks is crucial to achieve high device performances. Therefore, a high-resolution, designable, and scalable patterning of metal nanowire networks is important but remains a critical challenge for fabricating high-performance electronic devices. This review summarizes recent advances in patterning of metal nanowire networks, using subtractive methods, additive methods of nanowire dispersions, and printing methods. Representative device applications of the patterned metal nanowire networks are presented. Finally, challenges and important directions in the area of the patterning of metal nanowire networks for device applications are discussed.

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“…Moreover, pulsed radiation offers more parameters to be controlled with high precision (such as repetition rate, pulse energy, etc. ), which makes fine tuning the processing conditions possible [ 42 , 43 , 44 , 45 ]. The features of the deposition process and the parameters affecting its efficiency have been studied; the importance of surface pre-activation of the acceptor substrate, with the laser-induced microplasma technique [ 46 , 47 ], has also been highlighted and analyzed.…”

Section: Introductionmentioning

confidence: 99%

Direct Laser Writing of Copper Micropatterns from Deep Eutectic Solvents Using Pulsed near-IR Radiation

et al. 2022

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In this study, we developed a method for the fabrication of electrically conductive copper patterns of arbitrary topology and films on dielectric substrates, by improved laser-induced synthesis from deep eutectic solvents. A significant increase in the processing efficiency was achieved by acceptor substrate pretreatment, with the laser-induced microplasma technique, using auxiliary glass substrates and optional laser post-processing of the recorded structures; thus, the proposed approach offers a complete manufacturing cycle, utilizing a single, commercially available, pulsed Yb fiber laser system. The potential implications of the presented research are amplified by the observation of laser-induced periodic surface structures (LIPSSs) that may be useful for the further tuning of tracks’ functional properties.

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Using a nanosecond laser to pattern copper nanowire-based flexible electrodes: From simulation to practical application

Cited by 12 publications

References 30 publications

Copper Nanowire-Sealed Titanium Dioxide/Poly(dimethylsiloxane) Electrode with an In-Plane Wavy Structure for a Stretchable Capacitive Strain Sensor

Copper Nanowire-Sealed Titanium Dioxide/Poly(dimethylsiloxane) Electrode with an In-Plane Wavy Structure for a Stretchable Capacitive Strain Sensor

Patterning of Metal Nanowire Networks: Methods and Applications

Direct Laser Writing of Copper Micropatterns from Deep Eutectic Solvents Using Pulsed near-IR Radiation

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