Paper surfaces for metal nanoparticle inkjet printing

Öhlund, Thomas; Örtegren, Jonas; Forsberg, Sven; Nilsson, Hans‐Erik

doi:10.1016/j.apsusc.2012.07.112

Cited by 78 publications

(77 citation statements)

References 32 publications

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“…Indeed, DEG induces to create a highly conducting PEDOT:PSS network. The resistivity of the nanoparticle silver ink is usually 0.30-0.40 m, but in some cases it could be higher than 1 m [29,30]. The sintering process could be one of the reasons of a higher resistivity, as confirmed in the literature [31].…”

Section: Preparation Of Sensing Filmssupporting

confidence: 50%

Mechanical behavior of strain sensors based on PEDOT:PSS and silver nanoparticles inks deposited on polymer substrate by inkjet printing

Borghetti

Serpelloni

Sardini

et al. 2016

Sensors and Actuators A: Physical

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a b s t r a c tRecently, inkjet printing technology has received growing attention as a method to produce low-cost large-area electronics, sensors, and antennas on polymer substrates. This technology relies on printing techniques to deposit electrically functional materials onto polymer substrates to fabricate electronic components or sensing elements. In this paper, we applied an inkjet printed technology for the development and characterization of films on a polymer substrate aiming at giving design considerations for the optimization of strain sensors or printed electronics obtained by inkjet printing. Two inks were tested over a polyimide substrate, a water-based conductive polymer, PEDOT:PSS, and a silver nanoparticles ink. Their sensing capabilities were investigated under tensile conditions and various strain histories (strain ramp; cyclic loading-unloading tests; application of constant strain over prolonged time) aiming at highlighting the correlation between electrical response, applied strain, time and mechanical histories. Furthermore, the mechanical viscoelastic response of the substrate was investigated under similar strain histories interpreting the results at the light of the substrate deformational characteristics and evaluating its influence.

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Section: Preparation Of Sensing Filmssupporting

confidence: 50%

Mechanical behavior of strain sensors based on PEDOT:PSS and silver nanoparticles inks deposited on polymer substrate by inkjet printing

Borghetti

Serpelloni

Sardini

et al. 2016

Sensors and Actuators A: Physical

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“…Substituting w 1 into the equation by Smith et al, 1 we obtain a modified expression for the trace width as shown in equation (3), taking into account the surface roughness: The final expression for the actual trace width can be expressed in equation (4) The effect of porosity is typically considered in literature for coated substrates such as paper, [41][42][43][44] where the pore size distribution and network structure of the coating layer would affect the speed of ink penetration into the pores. 42 Much of the literature involving coated layers considered dye-based inks, [42][43][44] though Ohlund et al 41 considered the conductivity obtained from printing silver based inks onto coated papers. 41 For substrates without coatings, porosity could be considered in terms of the water absorption into the substrate according to the IPC-TM-650-2.6.2 test method (i.e.…”

Section: Effect Of Substratementioning

confidence: 99%

Surface Treatments for Inkjet Printing onto a PTFE-Based Substrate for High Frequency Applications

Lim

Goh

Liu

2013

Ind. Eng. Chem. Res.

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Inkjet printing onto laminates for use in high frequency applications (high frequency laminates) is challenging, due to the substrate surface roughness present after etching away the copper layer(s). This has a detrimental effect on interconnect losses as the frequency increases. In this paper, different surface treatments to reduce the surface roughness of a typical high frequency laminate (RO3006) are investigated. In particular, the importance of matching the substrate surface energy to the ink to achieve a smooth coated layer for the case of a UV cured insulator is demonstrated. This is achievable within the parameters of heating the platen, which is a more flexible approach compared to modifying the ink to improve the ink-substrate interaction. In printing onto the surface modified substrates, the substrate roughness was observed to affect the printed line width significantly. A surface roughness factor was introduced to take into account the phenomenon by modifying the original formula of Smith et al. 1Lastly, the authors show that the printed line widths are also influenced by the surface tension arising from charges present on the surface modified substrates.

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“…Note that in contrast, Table 1 does not suggest any migration and concentration of Ca 2+ . It has been shown previously that the physical structure of paper coatings has a profound influence of the film formation and the resulting conductivity of inkjet-printed metal NP films 26,27 . It was proposed that surface roughness and pore size distribution are critical parameters for the conductive film formation.…”

Section: Surface Chemistrymentioning

confidence: 99%

Assisted sintering of silver nanoparticle inkjet ink on paper with active coatings

et al. 2015

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Inkjet-printed metal films are important within the emerging field of printed electronics. For large-scale manufacturing, low-cost flexible substrates and low temperature sintering is desired. Tailored coated substrates are interesting for roll-to-roll fabrication of printed electronics, since a suitable tailoring of the ink-substrate system may reduce, or remove, the need for explicit sintering. Here we utilize specially designed coated papers, containing chloride as an active sintering agent. The built-in sintering agent greatly assists low-temperature sintering of inkjet-printed AgNP films. Further, we examine the effect of variations in coating pore size and precoating type. Interestingly, we find that the sintering is substantially affected by these parameters. IntroductionThe interest in printed electronics and other printed functionalities is considerable worldwide. In contrast to traditional subtractive photolithography-and etching processes, the printing process is purely additive, which means less material waste and a reduced need for processing chemicals. This results in cost savings and environmental advantages, in particular when large area coverage is desired. Additionally, printing processes have good compatibility with flexible substrates such as plastic films and paper. Applying electronic-or other functionality on flexible, low-cost substrates, across large areas in roll-to-roll processes, enables novel applications with large potential. Among the many important applications for printed electronics are photovoltaic devices . It is capable of covering large areas with simple and cost-effective setups. Furthermore, the non-contact nature of deposition allows it to be used for delicate and pressure-sensitive surfaces. The ink formulation is relatively challenging. To be reliably jetted, properties such as viscosity, surface tension, volatility and particle size need to be well controlled. To avoid aggregation, the particles are typically stabilized using polymers that adhere to the surfaces. Depending on the specific polymers and electrical charges in the system, the stabilization may be either steric, electrostatic or a combination of both (electrosteric) 13 . Some of the most common stabilizing polymers are polyvinylpyrrolidone (PVP) and polyvinyl alcohol (PVA) 14 .Electrically conducting layers are important since they are included in most applications of printed electronics. Although conductive inkjet inks may be formulated from several classes of materials, including conductive polymers 15 , carbon-based materials 16,17 , and metal nanoparticles (NPs) [18][19][20] . The metal NP inks are particularly suitable when high conductivity is required, for example when printing antennas 21 and circuit board conductors 22,23 .Paper-based substrates for printed electronics are interesting for several reasons. Environmental friendliness, flexibility and low cost are the key benefits. The physical and chemical properties may be altered by chemical additives or changes in materials and processes. Therefor...

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Paper surfaces for metal nanoparticle inkjet printing

Cited by 78 publications

References 32 publications

Mechanical behavior of strain sensors based on PEDOT:PSS and silver nanoparticles inks deposited on polymer substrate by inkjet printing

Mechanical behavior of strain sensors based on PEDOT:PSS and silver nanoparticles inks deposited on polymer substrate by inkjet printing

Surface Treatments for Inkjet Printing onto a PTFE-Based Substrate for High Frequency Applications

Assisted sintering of silver nanoparticle inkjet ink on paper with active coatings

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