Microscale electrohydrodynamic printing of conductive silver features based on <i>in situ</i> reactive inks

Qi, Lei; He, Jiankang; Zhang, Bing; Chang, Jinke; Li, Dichen

doi:10.1039/c7tc04114d

Cited by 32 publications

(21 citation statements)

References 30 publications

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“…The resistance of the fabricated silver conductive line can be as low as 4 × 10 −4 Ω•m. Lei [25] developed an electrohydrodynamic (EHD) jet printing strategy based on in situ reactive inks to fabricate microscale conductive silver features. The printed features mainly contain nanoscale silver particles and exhibit an electrical conductivity of 3.3 × 10 −4 Ω•m.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Nano Silver Paste and Applications in Transparent Electrodes via Electric-Field Driven Micro-Scale 3D Printing

Zhu

et al. 2020

Nanomaterials

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Nano-silver paste, as an important basic material for manufacturing thick film components, ultra-fine circuits, and transparent conductive films, has been widely used in various fields of electronics. Here, aiming at the shortcomings of the existing nano-silver paste in printing technology and the problem that the existing printing technology cannot achieve the printing of high viscosity, high solid content nano-silver paste, a nano-silver paste suitable for electric-field-driven (EFD) micro-scale 3D printing is developed. The result shows that there is no oxidation and settlement agglomeration of nano-silver paste with a storage time of over six months, which indicates that it has good dispersibility. We focus on the printing process parameters, sintering process, and electrical conductivity of nano-silver paste. The properties of the nano-silver paste were analyzed and the feasibility and practicability of the prepared nano-silver paste in EFD micro-scale 3D printing technology were verified. The experiment results indicate that the printed silver mesh which can act as transparent electrodes shows high conductivity (1.48 Ω/sq) and excellent transmittance (82.88%). The practical viability of the prepared nano-silver paste is successfully demonstrated with a deicing test. Additionally, the experimental results show that the prepared silver mesh has excellent heating properties, which can be used as transparent heaters.

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Section: Introductionmentioning

confidence: 99%

Preparation of Nano Silver Paste and Applications in Transparent Electrodes via Electric-Field Driven Micro-Scale 3D Printing

Zhu

et al. 2020

Nanomaterials

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“…Furthermore, the effects of the reactive ink concentration, printing layer number, and treatment temperature on the electrical properties and microstructures of the printed patterns were investigated systematically. Compared with the literature reports [28,30,31,32,33,34], the advantages of our work are that it does not require special experimental setups. The conductivity of the conductive pattern could be controlled easily by changing the concentrations of the reductant and the reaction ink.…”

Section: Introductionmentioning

confidence: 93%

“…To address these issues, particle-free in situ reactive inks have been recently developed, with great advantages in their simple, low-cost fabrication process and high conductivity using relatively low treatment temperature [30,31,32,33,34,35,36,37,38]. Bidoki et al reported that deposited layers of in situ reactive silver inks exhibited high electrical conductance of up to 1.89 × 10 5 S/m [30].…”

Section: Introductionmentioning

confidence: 99%

“…Bidoki et al reported that deposited layers of in situ reactive silver inks exhibited high electrical conductance of up to 1.89 × 10 5 S/m [30]. Most recently, Lei et al demonstrated that microscale-conductive silver features can be fabricated on the basis of in situ reactive silver inks on various flexible substrate at 90 °C [32]. On the basis of reactive silver inks, different printing methods such as electrohydrodynamic printing [32], microreactor-assisted printing [34], and inkjet printing [30,34,35,36,37,38] have been used to produce highly conductive silver features at relatively low temperatures.…”

Section: Introductionmentioning

confidence: 99%

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Reactive Conductive Ink Capable of In Situ and Rapid Synthesis of Conductive Patterns Suitable for Inkjet Printing

Wang

Zhou

et al. 2019

Molecules

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We report a fabrication method of the conductive pattern based on in situ reactive silver precursor inks by inkjet printing. The reactive silver precursor inks were prepared with ethylene glycol and deionized water mixture as the solvent, and silver nitrate as silver source. Sodium borohydride solution as the reducing agent was first coated on photographic paper by screen printing process, and then dried at 50 °C for 4 h. Furthermore, the reactive silver precursor inks were printed on a photographic paper coated with sodium borohydride using inkjet printing to form silver nanoparticles in situ due to redox reaction, and thus a conductive pattern was obtained. The effects of the reactive silver precursor ink concentration and printing layer number and treatment temperature on the electrical properties and microstructures of the printed patterns were investigated systematically. The size range of in situ-formed silver nanoparticles was 50–90 nm. When the reactive silver precursor ink concentration was 0.13 g/mL, the five-layer printed pattern exhibited a sheet resistance of 4.6 Ω/γ after drying at room temperature for 2 h; furthermore, the sheet resistance of the printed pattern decreased to 1.4 Ω/γ after drying at 130 °C for 2 h. In addition, the display function circuit was printed on the photographic paper to realize the display of the numbers 0–99. It provides new research ideas for the development of environmentally friendly and low-cost flexible paper-based circuits.

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“…Several works reported the deposition of conductive silver tracks on tracing and glossy paper substrate using silver-reactive ink for the development of electronic devices. [16][17][18] As mentioned by Yang et al sulfuric paper has low permeability, low surface roughness, and good heat resistance that allows post-treatment at 200 1C, making them a good candidate for deposition of conductive silver tracks. 18 However, the low permeability of such substrate renders them unfit for the development of microfluidic devices.…”

Section: Introductionmentioning

confidence: 99%

Patterning microporous paper with highly conductive silver nanoparticles via PVP-modified silver–organic complex ink for development of electric valves

et al. 2021

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Microscale electrohydrodynamic printing of conductive silver features based on in situ reactive inks

Abstract: An electrohydrodynamic printing strategy is presented to fabricate microscale flexible features with tunable conductive properties based on in situ reactive inks.

Cited by 32 publications

References 30 publications

Preparation of Nano Silver Paste and Applications in Transparent Electrodes via Electric-Field Driven Micro-Scale 3D Printing

Preparation of Nano Silver Paste and Applications in Transparent Electrodes via Electric-Field Driven Micro-Scale 3D Printing

Reactive Conductive Ink Capable of In Situ and Rapid Synthesis of Conductive Patterns Suitable for Inkjet Printing

Patterning microporous paper with highly conductive silver nanoparticles via PVP-modified silver–organic complex ink for development of electric valves

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