Inkjet-printed Silver Tracks on Different Paper Substrates

Joubert, Trudi-Heleen; Bezuidenhout, Petrone; Chen, H.; Smith, Suzanne; Land, Kevin

doi:10.1016/j.matpr.2015.08.018

Cited by 24 publications

(12 citation statements)

References 11 publications

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“…Whatman chromatography paper grade two was used as substrate. This pure cellulose paper has been selected due to the lack of impurities or additives present together with its uniformly absorbent properties [42,43]. Prior to synthesis, the paper substrate was subjected to the conductive layer deposition.…”

Section: Synthesis Of Tio 2 Films and Gold Depositionmentioning

confidence: 99%

TiO2 Nanostructured Films for Electrochromic Paper Based-Devices

et al. 2020

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Electrochromic titanium dioxide (TiO2) nanostructured films were grown on gold coated papers using a microwave-assisted hydrothermal method at low temperature (80 °C). Uniform nanostructured films fully covered the paper substrate, while maintaining its flexibility. Three acids, i.e., acetic, hydrochloric and nitric acids, were tested during syntheses, which determined the final structure of the produced films, and consequently their electrochromic behavior. The structural characteristics of nanostructured films were correlated with electrochemical response and reflectance modulation when immersed in 1 M LiClO4-PC (lithium perchlorate with propylene carbonate) electrolyte, nevertheless the material synthesized with nitric acid resulted in highly porous anatase films with enhanced electrochromic performance. The TiO2 films revealed a notable contrast behavior, reaching for the nitric-based film optical modulations of 57%, 9% and 22% between colored and bleached states, at 250, 550 and 850 nm, respectively in reflectance mode. High cycling stability was also obtained performing up to 1500 cycles without significant loss of the electrochromic behavior for the nitric acid material. The approach developed in this work proves the high stability and durability of such devices, together with the use of paper as substrate that aggregates the environmentally friendly, lightweight, flexibility and recyclability characters of the substrate to the microwave synthesis features, i.e., simplicity, celerity and enhanced efficiency/cost balance.

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Section: Synthesis Of Tio 2 Films and Gold Depositionmentioning

confidence: 99%

TiO2 Nanostructured Films for Electrochromic Paper Based-Devices

et al. 2020

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“…On the one hand, we can notice how the multiple‐printing approach leads to a dramatic drop in sheet resistance from around 500–700 mΩ □ −1 at a thickness of 2 µm to 25 mΩ □ −1 at a thickness of 8 µm. These values are much smaller than those commonly obtained via IJP (0.2–4.5 Ω □ −1 ), [ 5,6,46–48 ] and of the same order as those typical of SP, where sheet resistances of 15–70 mΩ □ −1 are usually achieved. [ 5,44–46 ] On the other hand, as the number of prints increases, the points gather along the same trend with no apparent difference between substrates.…”

Section: Resultsmentioning

confidence: 82%

“…[ 19,20 ] These rheological properties are compatible with high solid contents, and in the case of conductive inks, they can result in the fabrication of interconnects with sheet resistances as low as 50 mΩ □ −1 , [ 5,44–46 ] much lower than those resulting from IJP (around 1 Ω □ −1 ). [ 5,6,46–48 ] All of this makes LIFT an interesting candidate as the digital alternative aimed at in the preceding paragraph.…”

Section: Introductionmentioning

confidence: 99%

Laser‐Induced Forward Transfer: A Digital Approach for Printing Devices on Regular Paper

Sopeña

Sieiro

Fernández-Pradas

et al. 2020

Adv Materials Technologies

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Inkjet printing (IJP) is the most widespread direct‐write technique in paper electronics. However, this technique cannot be used for printing devices on untreated regular paper, since its low‐viscosity nanoinks leak through the cellulose fibers. Thus, a planarization coating is frequently used as a barrier, even though this makes substrates more expensive and less eco‐friendly. Alternatively, high solid content screen printing (SP) inks could allow printing on regular paper due to their high viscosity and large particle size; however, they cannot be printed through IJP. Another digital technique is then required: laser‐induced forward transfer (LIFT). This work aims at proving the feasibility of LIFT for printing devices on regular paper. The main transfer parameters are systematically varied to obtain uniform Ag‐SP interconnects, whose performance is improved by a multiple‐printing approach. It results in low resistances with much better performance than those typical of IJP. After optimizing the functionality of the printed lines, a proof‐of‐concept consisting of a radio‐frequency inductor is provided. The characterization of the device shows a substantially higher performance than that of the same device printed with IJP ink in similar conditions, which proves the potential of LIFT for digitally fabricating devices on regular paper.

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“…Despite the porosity of paper-based substrates, the addition of coatings has drastically improved the printing resolution as well as the functioning behavior of the ink. For example, inkjet paper [73] has a thin coating of a resin which "traps" the nanoparticles of the ink onto the surface while absorbing the fluid content through the paper, resulting in a narrow resolution print and a glossy or matt finish. However, the sintering process is highly limited; as paper is made from cellulose, it thermally decomposes at temperatures above 100 • C, and ignites at 233…”

Section: Substratesmentioning

confidence: 99%

Printed Electronics as Prepared by Inkjet Printing

2020

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Inkjet printing has been used to produce a range of printed electronic devices, such as solar panels, sensors, and transistors. This article discusses inkjet printing and its employment in the field of printed electronics. First, printing as a field is introduced before focusing on inkjet printing. The materials that can be employed as inks are then introduced, leading to an overview of wetting, which explains the influences that determine print morphology. The article considers how the printing parameters can affect device performance and how one can account for these influences. The article concludes with a discussion on adhesion. The aim is to illustrate that the factors chosen in the fabrication process, such as dot spacing and sintering conditions, will influence the performance of the device.

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Inkjet-printed Silver Tracks on Different Paper Substrates

Cited by 24 publications

References 11 publications

TiO2 Nanostructured Films for Electrochromic Paper Based-Devices

TiO2 Nanostructured Films for Electrochromic Paper Based-Devices

Laser‐Induced Forward Transfer: A Digital Approach for Printing Devices on Regular Paper

Printed Electronics as Prepared by Inkjet Printing

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