Effect of contact angle and drop spacing on the bulging frequency of inkjet-printed silver lines on FC-coated glass

Moon, Yoon Jae; Kang, Hyun-Su; Lee, Sang Ho; Kang, Kyung‐Tae; Cho, Young June; Hwang, Jong Yeon; Moon, Seok‐Jun

doi:10.1007/s12206-013-1179-3

Cited by 16 publications

(17 citation statements)

References 19 publications

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“…Using geometric considerations, Hu et al showed that for the mixed solvent ink a droplet spacing of ∼0.5-0.8 to the dried droplet size ensured optimal droplet merging 200 , forming lines with 'uniform edges' to represent optimal printing 12 . Similar printing parameters have also been defined previously for other types of ink formulations 200,201 .…”

Section: D Materials Inkjet Inksmentioning

confidence: 95%

Functional inks and printing of two-dimensional materials

et al. 2018

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Graphene and related two-dimensional materials provide an ideal platform for next generation disruptive technologies and applications. Exploiting these solution-processed two-dimensional materials in printing can accelerate this development by allowing additive patterning on both rigid and conformable substrates for flexible device design and large-scale, high-speed, cost-effective manufacturing. In this review, we summarise the current progress on ink formulation of two-dimensional materials and the printable applications enabled by them. We also present our perspectives on their research and technological future prospects.

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Section: D Materials Inkjet Inksmentioning

confidence: 95%

Functional inks and printing of two-dimensional materials

et al. 2018

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“…In order to use ink-jet printing to print fine patterns, it is most important to control the surface energy of the substrate to optimize the spread of the droplets; however, it is also necessary to control the spacing between droplets, so that the droplets overlap properly with each other. It is also important to prevent bulging, in which later-printed droplets affect the position of previously printed droplets, so that patterns cannot be aligned in line [ 25 ]. In this experiment, the film properties of QD EML pixels were observed under ink-jet printing conditions of drop spaces of 5-drops and 7-drops.…”

Section: Resultsmentioning

confidence: 99%

Sequential Improvement from Cosolvents Ink Formulation to Vacuum Annealing for Ink-Jet Printed Quantum-Dot Light-Emitting Diodes

Han

Kim

et al. 2020

Materials

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Optimization of ink-jet printing conditions of quantum-dot (QD) ink by cosolvent process and improvement of quantum-dot light-emitting diodes (QLEDs) characteristics assisted by vacuum annealing were analyzed in this research. A cosolvent process of hexane and ortho-dichlorobenzene (oDCB) was optimized at the ratio of 1:2, and ink-jetting properties were analyzed using the Ohnesorge number based on the parameters of viscosity and surface tension. However, we found that these cosolvents systems cause an increase in the boiling point and a decrease in the vapor pressure, which influence the annealing characteristics of the QD emission layer (EML). Therefore, we investigated QLEDs’ performance depending on the annealing condition for ink-jet printed QD EML prepared using cosolvents systems of hexane and oDCB. We enhanced the quality of QD EML and device performance of QLEDs by a vacuum annealing process, which was used to prevent exposure to moisture and oxygen and to promote effective evaporation of solvent in QD EML. As a result, the characteristics of QLEDs formed using ink-jet printed QD EML annealed under vacuum environment increased luminescence (L), current efficiency (CE), external quantum efficiency (EQE), and lifetime (LT50) by 30.51%, 33.7%, 21.70%, and 181.97%, respectively, compared to QLEDs annealed under air environment.

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“…When the interdroplet distance is reduced too much, below a certain limit, uniformity is lost, and bulges appear along the track (Figure 5d-IV). [87,88,94] Duineveld explained the formation of bulge instabilities with the contact angle of the liquid becoming larger than the advancing contact angle, which depends on substrate velocity and applied liquid volume. [95] If the earlier droplet solidifies before the adjacent droplet reaches the substrate, a line morphology that looks like stacked coins is observed (Figure 5d-V).…”

Section: Inkjet-based 3d Printingmentioning

confidence: 99%

Additive Manufacturing of 3D Aerogels and Porous Scaffolds: A Review

Tetik

Wang

Sun

et al. 2021

Adv Funct Materials

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Aerogels are highly porous structures produced by replacing the liquid solvent of a gel with air without causing a collapse in the solid network. Unlike conventional fabrication methods, additive manufacturing (AM) has been applied to fabricate 3D aerogels with customized geometries specific to their applications, designed pore morphologies, multimaterial structures, etc. To date, three major AM technologies (extrusion, inkjet, and stereolithography) followed by a drying process have been proposed to additively manufacture 3D functional aerogels. 3D-printed aerogels and porous scaffolds showed great promise for a variety of applications, including tissue engineering, electrochemical energy storage, controlled drug delivery, sensing, and soft robotics. In this review, the details of steps included in the AM of aerogels and porous scaffolds are discussed, and a general frame is provided for AM of those. Then, the different postprinting processes are addressed to achieve the porosity (after drying); and mechanical strength, functionality, or both (after postdrying thermal or chemical treatments) are provided. Furthermore, the applications of the 3D-printed aerogels/porous scaffolds made from a variety of materials are also highlighted. The review is concluded with the current challenges and an outlook for the next generation of 3D-printed aerogels and porous scaffolds.

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Effect of contact angle and drop spacing on the bulging frequency of inkjet-printed silver lines on FC-coated glass

Cited by 16 publications

References 19 publications

Functional inks and printing of two-dimensional materials

Functional inks and printing of two-dimensional materials

Sequential Improvement from Cosolvents Ink Formulation to Vacuum Annealing for Ink-Jet Printed Quantum-Dot Light-Emitting Diodes

Additive Manufacturing of 3D Aerogels and Porous Scaffolds: A Review

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