Nanomaterial Patterning in 3D Printing

Elder, Brian; Neupane, Rajan; Tokita, Eric; Ghosh, Udayan; Hales, Samuel; Kong, Yong Lin

doi:10.1002/adma.201907142

Cited by 171 publications

(122 citation statements)

References 400 publications

(692 reference statements)

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“…Cu-based inks/pastes have high potentials for low-temperature Cu–Cu bonding for high-power semiconductor devices as the next-generation die-attach nanomaterials [ 45 , 168 , 169 , 170 , 171 , 172 , 173 , 174 , 175 ]. Three-dimensional (3D) printed electronics is now an emerging field that enables the fabrication of nonflat or 3D molding [ 176 , 177 ]. Metal 3D technologies can produce metal prototypes with the freedom of design linked to additive manufacturing.…”

Section: Discussionmentioning

confidence: 99%

Surface and Interface Designs in Copper-Based Conductive Inks for Printed/Flexible Electronics

Tomotoshi

Kawasaki

2020

Nanomaterials

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Silver (Ag), gold (Au), and copper (Cu) have been utilized as metals for fabricating metal-based inks/pastes for printed/flexible electronics. Among them, Cu is the most promising candidate for metal-based inks/pastes. Cu has high intrinsic electrical/thermal conductivity, which is more cost-effective and abundant, as compared to Ag. Moreover, the migration tendency of Cu is less than that of Ag. Thus, recently, Cu-based inks/pastes have gained increasing attention as conductive inks/pastes for printed/flexible electronics. However, the disadvantages of Cu-based inks/pastes are their instability against oxidation under an ambient condition and tendency to form insulating layers of Cu oxide, such as cuprous oxide (Cu2O) and cupric oxide (CuO). The formation of the Cu oxidation causes a low conductivity in sintered Cu films and interferes with the sintering of Cu particles. In this review, we summarize the surface and interface designs for Cu-based conductive inks/pastes, in which the strategies for the oxidation resistance of Cu and low-temperature sintering are applied to produce highly conductive Cu patterns/electrodes on flexible substrates. First, we classify the Cu-based inks/pastes and briefly describe the surface oxidation behaviors of Cu. Next, we describe various surface control approaches for Cu-based inks/pastes to achieve both the oxidation resistance and low-temperature sintering to produce highly conductive Cu patterns/electrodes on flexible substrates. These surface control approaches include surface designs by polymers, small ligands, core-shell structures, and surface activation. Recently developed Cu-based mixed inks/pastes are also described, and the synergy effect in the mixed inks/pastes offers improved performances compared with the single use of each component. Finally, we offer our perspectives on Cu-based inks/pastes for future efforts.

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Section: Discussionmentioning

confidence: 99%

Surface and Interface Designs in Copper-Based Conductive Inks for Printed/Flexible Electronics

Tomotoshi

Kawasaki

2020

Nanomaterials

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“…In addition, the integration of nanomaterials with 3D printing was discussed more generally in the creation of multifunctional and complex devices and products imparting physical properties (mechanical, electrical, magnetic, optical, thermal) to 3D printed objects in a recent review. [ 107 ] However, to the best of our knowledge, the in‐depth discussion about the alliance of nanomaterials and 3D printing in the development of pharmaceutical and biomedical products is still uncovered. Therefore, the focus of our review was to discuss the integration of these two technologies in the development of pharmaceutical and drug‐loaded biomedical products, according to the inclusion and exclusion criteria introduced below.…”

Section: D Printing and Nanotechnology Alliancementioning

confidence: 99%

3D Printing and Nanotechnology: A Multiscale Alliance in Personalized Medicine

Santos

Oliveira

et al. 2021

Adv Funct Materials

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3D printing and nanotechnology have been two important tools in the development of therapeutic approaches for personalized medicine. More recently, their alliance has been improved in an effort to build innovative, versatile, multifunctional, and/or smart medical and pharmaceutical products. Therefore, an extensive review about scientific studies that ally 3D printing and nanomaterials in the development of new approaches for pharmaceutical and medical applications for the treatment and prevention of diseases is presented here. The articles are classified into five categories according to their main application: Cell growth and tissue engineering, antimicrobial, drug delivery, stimulus‐response, and theranostics. Semisolid extrusion, inorganic nanoparticles, and cell growth and tissue engineering are the most reported 3D printing technique, type of nanomaterial, and application, respectively. The increase in papers dedicated to these areas is also notable, especially in the 2019 and 2020, when semisolid extrusion became the most used technique, overcoming fused deposition modelling. In fact, this review highlights that the possibility of an alliance between 3D printing and nanotechnology for the production of multiscale materials is undoubtedly a great opportunity for knowledge and innovation in the pharmaceutical and medical area.

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“…[ 25,37,38 ] Recent examples include reviews by Elder et al. [ 39 ] and Ngo et al. [ 17 ] that provide a general exposition.…”

Section: Introductionmentioning

confidence: 99%

“…[12] Moreover, macro-scaled structures often consist of micro-sized features that play a role of materials at the focal point-is mentioned only in reviews that overview a wide range of printing methods. [25,37,38] Recent examples include reviews by Elder et al [39] and Ngo et al [17] that provide a general exposition. Other reviews sometimes focus on specific material families, [40][41][42][43] for example Hirt et al [38] that focus on metal microstructures.…”

Section: Introductionmentioning

confidence: 99%

Laser‐Based Printing: From Liquids to Microstructures

Armon

Greenberg

Edri

et al. 2021

Adv Funct Materials

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Assembly of materials into microstructures under laser guidance is attracting wide attention. The ability to pattern various materials and form 2D and 3D structures with micron/sub‐micron resolution and less energy and material waste compared with standard top‐down methods make laser‐based printing promising for many applications, for example medical devices, sensors, and microelectronics. Assembly from liquids provides a smaller feature size than powders and has advantages over other states of matter in terms of relatively simple setup, easy handling, and recycling. However, the simplicity of the setup conceals a variety of underlying mechanisms, which cannot be identified simply according to the starting or resulting materials. This progress report surveys the various mechanisms according to the source of the material—preformed or locally synthesized. Within each category, methods are defined according to the driving force of material deposition. The advantages and limitations of each method are critically discussed, and the methods are compared, shedding light on future directions and developments required to advance this field.

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Nanomaterial Patterning in 3D Printing

Cited by 171 publications

References 400 publications

Surface and Interface Designs in Copper-Based Conductive Inks for Printed/Flexible Electronics

Surface and Interface Designs in Copper-Based Conductive Inks for Printed/Flexible Electronics

3D Printing and Nanotechnology: A Multiscale Alliance in Personalized Medicine

Laser‐Based Printing: From Liquids to Microstructures

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