The laser writing of highly conductive and anti-oxidative copper structures in liquid

Zhou, Xingwen; Guo, Wei; Zhu, Ying; Peng, Peng

doi:10.1039/c9nr07248a

Cited by 27 publications

(38 citation statements)

References 45 publications

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“…Resistance of the obtained 2 cm pattern is around 3 Ω cm −1 (resistivity ≈ 1 × 10 −7 Ω m). Furthermore, the as‐written Cu pattern adheres firmly on the substrate, which ensures a stable structure of the sensor. A PDMS dielectric layer is cured between two orthogonal patterned electrode layers.…”

Section: Resultsmentioning

confidence: 99%

Laser‐Patterned Copper Electrodes for Proximity and Tactile Sensors

Zhou

Chen

et al. 2020

Adv Materials Inter

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Proximity and tactile sensors are important in human–machine interaction, which are usually fabricated with complex processes. In this study, a facile assembling method to fabricate these sensors on flexible substrate is presented. Using one‐step laser‐patterned highly conductive Cu electrodes on polyimide sheets and polydimethylsiloxane dielectric layer, single‐pixel proximity sensor with long detecting range and multichannel tactile sensor with high planar sensitivity are fabricated. Both sensors exhibit long term stability and repeatability throughout hundreds of testing cycles. This study highlights a rapid and low cost assembling for fabricating of capacitive sensors.

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Section: Resultsmentioning

confidence: 99%

Laser‐Patterned Copper Electrodes for Proximity and Tactile Sensors

Zhou

Chen

et al. 2020

Adv Materials Inter

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“…In contrast to the "top-down" synthesis of PLAL on bulk targets, the "bottom-up" method of PLICN is also a promising liquid-based laser strategy for nanomaterial design [133]. Liang Laser-based photohydrothermal synthesis of metal oxides was another kind of PLICN technique.…”

Section: Laser Synthesis Of Nanomaterials By Laser Ablation In Liquidmentioning

confidence: 99%

Laser Synthesis and Microfabrication of Micro/Nanostructured Materials Toward Energy Conversion and Storage

et al. 2021

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Nanomaterials are known to exhibit a number of interesting physical and chemical properties for various applications, including energy conversion and storage, nanoscale electronics, sensors and actuators, photonics devices and even for biomedical purposes. In the past decade, laser as a synthetic technique and laser as a microfabrication technique facilitated nanomaterial preparation and nanostructure construction, including the laser processing-induced carbon and non-carbon nanomaterials, hierarchical structure construction, patterning, heteroatom doping, sputtering etching, and so on. The laser-induced nanomaterials and nanostructures have extended broad applications in electronic devices, such as light–thermal conversion, batteries, supercapacitors, sensor devices, actuators and electrocatalytic electrodes. Here, the recent developments in the laser synthesis of carbon-based and non-carbon-based nanomaterials are comprehensively summarized. An extensive overview on laser-enabled electronic devices for various applications is depicted. With the rapid progress made in the research on nanomaterial preparation through laser synthesis and laser microfabrication technologies, laser synthesis and microfabrication toward energy conversion and storage will undergo fast development.

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“…[ 156 ] These methods were referred to as laser‐induced hydrothermal growth, [ 166 ] laser‐assisted hydrothermal method, [ 167 ] laser‐induced direct selective growth, [ 42 ] photothermal chemical liquid growth, [ 168 ] optothermal‐effect‐based mechanism, [ 169 ] laser‐induced solvothermal voxels, [ 170,171 ] direct‐write lithography, [ 172 ] laser‐induced direct lithography, [ 173 ] and in situ laser patterning technique. [ 174 ]…”

Section: Directed Local Synthesismentioning

confidence: 99%

“…[ 166 ] Other methods for avoiding microbubbles are to perform pre‐treatment such as plasma etching of the surface to increase surface wettability [ 171 ] (for polar solvents) or to choose a solvent with a high boiling point. [ 174 ] In some cases, bubble formation was noted but did not seem to interfere with the deposition process. [ 172 ] A variant that utilizes such microbubbles is discussed below.…”

Section: Directed Local Synthesismentioning

confidence: 99%

“…[ 170 ] Other demonstrations utilizing a mixture of precursors include formation of the molecular compound MoS 2 , [ 172 ] as well as AgBr [ 172 ] and Ag‐PVP. [ 172 ] Thermally driven reactions were also shown to decompose organic materials, resulting in patterns that consist of carbon [ 173 ] and Cu@C. [ 174 ] While most of the studies above focused on the formation of micro‐patterns (Figure 8b), some showed that without moving the stage during laser illumination and maintaining low reaction rates, discrete nanowires of ZnO and TiO 2 [ 166,167,169,175 ] can be formed (Figure 8c). Crystalline seeds (such as ZnO) can be pre‐deposited in order to allow faster initiation of the deposition of nanowires.…”

Section: Directed Local Synthesismentioning

confidence: 99%

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Laser‐Based Printing: From Liquids to Microstructures

Armon

Greenberg

Edri

et al. 2021

Adv Funct Materials

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Assembly of materials into microstructures under laser guidance is attracting wide attention. The ability to pattern various materials and form 2D and 3D structures with micron/sub‐micron resolution and less energy and material waste compared with standard top‐down methods make laser‐based printing promising for many applications, for example medical devices, sensors, and microelectronics. Assembly from liquids provides a smaller feature size than powders and has advantages over other states of matter in terms of relatively simple setup, easy handling, and recycling. However, the simplicity of the setup conceals a variety of underlying mechanisms, which cannot be identified simply according to the starting or resulting materials. This progress report surveys the various mechanisms according to the source of the material—preformed or locally synthesized. Within each category, methods are defined according to the driving force of material deposition. The advantages and limitations of each method are critically discussed, and the methods are compared, shedding light on future directions and developments required to advance this field.

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The laser writing of highly conductive and anti-oxidative copper structures in liquid

Abstract: An in situ laser patterning technique for manufacturing flexible Cu-based electrodes from a liquid precursor is demonstrated.

Cited by 27 publications

References 45 publications

Laser‐Patterned Copper Electrodes for Proximity and Tactile Sensors

Laser‐Patterned Copper Electrodes for Proximity and Tactile Sensors

Laser Synthesis and Microfabrication of Micro/Nanostructured Materials Toward Energy Conversion and Storage

Laser‐Based Printing: From Liquids to Microstructures

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