High resolution patterning of Ag nanowire flexible transparent electrode via electrohydrodynamic jet printing of acrylic polymer-silicate nanoparticle composite overcoating layer

Li, Xinlin; Park, Heonkuk; Lee, Myeong-Hoon; Hwang, Byungil; Kim, Se Hyun; Lim, Sooman

doi:10.1016/j.orgel.2018.08.032

Cited by 38 publications

(22 citation statements)

References 31 publications

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“…Recently, one-dimensional (1D) nanomaterials that include metal nanowires are emerging as a new generation of conducting materials for printing because of the excellent electrical conductivity and high stretchability as a result of the random percolation network. − However, it remains a challenge to print 1D nanomaterials with high resolution while retaining high conductivity, especially on stretchable elastomeric substrates. Electrohydrodynamic (EHD) printing, , as a noncontact printing technique, has been reported to print high-resolution (i.e., submicron) patterns. A typical EHD printing system uses electric fields rather than thermal or acoustic actuation to produce the ink flow. − The applied electric field deforms the meniscus at the printing nozzle to form a cone shape (i.e., Taylor cone), making it possible to print features much smaller than the nozzle size.…”

Section: Introductionmentioning

confidence: 99%

“…Electrohydrodynamic (EHD) printing, , as a noncontact printing technique, has been reported to print high-resolution (i.e., submicron) patterns. A typical EHD printing system uses electric fields rather than thermal or acoustic actuation to produce the ink flow. − The applied electric field deforms the meniscus at the printing nozzle to form a cone shape (i.e., Taylor cone), making it possible to print features much smaller than the nozzle size. As a result, a larger nozzle can be used to avoid nozzle clogging while still being capable of producing high-resolution features.…”

Section: Introductionmentioning

confidence: 99%

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Achieving High-Resolution Electrohydrodynamic Printing of Nanowires on Elastomeric Substrates through Surface Modification

Ren

Liu

Song

et al. 2020

ACS Appl. Electron. Mater.

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Stretchable electronics based on nanomaterials has received much interest recently. However, it is challenging to print 1D nanomaterials (e.g., nanowires) with high resolution on stretchable elastomeric substrates. Electrohydrodynamic (EHD) printing has been used to print 1D nanomaterials such as silver nanowires (AgNWs) on stretchable substrates, but the resolution and electric conductivity of the printed patterns are typically low because of the poor wettability of the ink on the surface of the substrates. This paper reports a systematic study of two surface modification methods, UV–ozone treatment and dopamine coating, to modify the surface of polydimethylsiloxane (PDMS), which enables reliable and tunable EHD printing of AgNWs. The dynamic contact angle and the contact angle hysteresis were systematically studied to understand and evaluate the two surface modification methods. This work further investigates the hydrophobic stability of the two surface modification methods that is of critical relevance to the EHD printing, as it determines the shelf life of the treated samples. The effects of treatment dose and aging on the EHD printing performances, such as resolution and conductivity, were studied to find the feasible ranges of the parameters for the surface treatment and printing process. The surface modification methods along with the proper printing conditions can be selected to tailor and optimize the printing performance. A wearable electronic patch with a fractal pattern of AgNWs is printed on the modified PDMS substrate to demonstrate the potential of the reported surface modification for reliable EHD printing of AgNWs for stretchable devices.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Achieving High-Resolution Electrohydrodynamic Printing of Nanowires on Elastomeric Substrates through Surface Modification

Ren

Liu

Song

et al. 2020

ACS Appl. Electron. Mater.

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“…The Ag NWs network is widely used, but its brittleness limits its wide range of applications. Li et al [99] printed a mechanically flexible and robust 5-μm acrylic polymer-silicate NP composite resin on Ag NWs TCE by an electrohydrodynamic (EHD) inkjet printing process during the preparation of Ag NWs TCE. The combined device has a transparency of 90% and a sheet resistance of 45 Ω/sq, and its flexibility and mechanical stability are greatly enhanced.…”

Section: Preparation Of Ag Nws Transparent Conductive Electrodesmentioning

confidence: 99%

Synthesis and Applications of Silver Nanowires for Transparent Conductive Films

Shi

Deng

et al. 2019

Micromachines

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Flexible transparent conductive electrodes (TCEs) are widely applied in flexible electronic devices. Among these electrodes, silver (Ag) nanowires (NWs) have gained considerable interests due to their excellent electrical and optical performances. Ag NWs with a one-dimensional nanostructure have unique characteristics from those of bulk Ag. In past 10 years, researchers have proposed various synthesis methods of Ag NWs, such as ultraviolet irradiation, template method, polyol method, etc. These methods are discussed and summarized in this review, and we conclude that the advantages of the polyol method are the most obvious. This review also provides a more comprehensive description of the polyol method for the synthesis of Ag NWs, and the synthetic factors including AgNO3 concentration, addition of other metal salts and polyvinyl pyrrolidone are thoroughly elaborated. Furthermore, several problems in the fabrication of Ag NWs-based TCEs and related devices are reviewed. The prospects for applications of Ag NWs-based TCE in solar cells, electroluminescence, electrochromic devices, flexible energy storage equipment, thin-film heaters and stretchable devices are discussed and summarized in detail.

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“…The successful employability of E-jet printing for flexible electronic applications is also well demonstrated in the literature. Li [23] and his associates manufactured flexible transparent electrodes made of silver nanowires by EHD. The fabricated electrodes exhibit excellent optical and electrical properties such as transmissivity and conductivity, respectively.…”

Section: Introductionmentioning

confidence: 99%

An experimental investigation for parametric appraisal of electrohydrodynamic-driven microfabrication approach using teaching and learning-based optimization

Das

Roy

Murmu

2020

J Braz. Soc. Mech. Sci. Eng.

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Electrohydrodynamic (EHD)-based microfabrication process is a novel high-resolution pattern generation technology for micro/nanoscale system fabrication. Achieving tiny droplets during deposition has been a critical issue for the further development of this new emerging technology. It is imperative to identify the proper fabrication parameters to get the desired resolution operation. In the current study, first, an experimental EHD microfabrication setup is developed, and then experiments are carried out to search for an operating condition, which can promote high-resolution droplet generation. The experiments are planned by design of experiment scheme. The influence of the operating control parameters such as nozzle to substrate gap, voltage and the supply rate of the material on deposited droplets diameter is investigated in the current work. Characterization study reveals that nozzle to substrate gap and supply rate have a positive effect on deposition behavior, whereas voltage has a negative association with the droplet resolution. For better control of the EHD process, a causal relationship is developed between process control and performance parameter. A metaheuristic search algorithm named teaching and learning-based optimization (TLBO) is employed to find out the optimal operating environment of the EHD process. The results are compared with the traditional robust parameter design approach, and the authors found that TLBO performs more effectively for resolution improvement in the EHD-driven microfabrication process. Moreover, the sequence in which the control parameters govern the fabrication process is identified and reported.

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High resolution patterning of Ag nanowire flexible transparent electrode via electrohydrodynamic jet printing of acrylic polymer-silicate nanoparticle composite overcoating layer

Cited by 38 publications

References 31 publications

Achieving High-Resolution Electrohydrodynamic Printing of Nanowires on Elastomeric Substrates through Surface Modification

Achieving High-Resolution Electrohydrodynamic Printing of Nanowires on Elastomeric Substrates through Surface Modification

Synthesis and Applications of Silver Nanowires for Transparent Conductive Films

An experimental investigation for parametric appraisal of electrohydrodynamic-driven microfabrication approach using teaching and learning-based optimization

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