Journal ArticleDOI
Inkjet Printing of Functional and Structural Materials: Fluid Property Requirements, Feature Stability, and Resolution
TLDR
In this paper, the authors review the current state of understanding of the mechanisms of drop formation and how this defines the fluid properties that are required for a given liquid to be printable.Abstract:
Inkjet printing is viewed as a versatile manufacturing tool for applications in materials fabrication in addition to its traditional role in graphics output and marking. The unifying feature in all these applications is the dispensing and precise positioning of very small volumes of fluid (1–100 picoliters) on a substrate before transformation to a solid. The application of inkjet printing to the fabrication of structures for structural or functional materials applications requires an understanding as to how the physical processes that operate during inkjet printing interact with the properties of the fluid precursors used. Here we review the current state of understanding of the mechanisms of drop formation and how this defines the fluid properties that are required for a given liquid to be printable. The interactions between individual drops and the substrate as well as between adjacent drops are important in defining the resolution and accuracy of printed objects. Pattern resolution is limited by the extent to which a liquid drop spreads on a substrate and how spreading changes with the overlap of adjacent drops to form continuous features. There are clearly defined upper and lower bounds to the width of a printed continuous line, which can be defined in terms of materials and process variables. Finer-resolution features can be achieved through appropriate patterning and structuring of the substrate prior to printing, which is essential if polymeric semiconducting devices are to be fabricated. Low advancing and receding contact angles promote printed line stability but are also more prone to solute segregation or “coffee staining” on drying.read more
Citations
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Journal ArticleDOI
Printing soft matter in three dimensions
TL;DR: The expanding range of printable materials, coupled with the ability to programmably control their composition and architecture across various length scales, is driving innovation in myriad applications.
Journal ArticleDOI
Printing and Prototyping of Tissues and Scaffolds
TL;DR: New manufacturing technologies under the banner of rapid prototyping enable the fabrication of structures close in architecture to biological tissue, and such techniques have opened new areas of research in tissue engineering and regenerative medicine.
Journal ArticleDOI
Additive Manufacturing of Ceramics: Issues, Potentialities, and Opportunities
TL;DR: Additive manufacturing (AM) is a technology which has the potential not only to change the way of conventional industrial manufacturing processes, adding material instead of subtracting, but also to create entirely new production and business strategies as discussed by the authors.
Journal ArticleDOI
Additive Manufacturing of Ceramic‐Based Materials
Nahum Travitzky,Alexander Bonet,Benjamin Dermeik,Tobias Fey,Ina Filbert-Demut,Lorenz Schlier,Tobias Schlordt,Peter Greil +7 more
TL;DR: A review of present achievements in the field of processing of ceramic-based materials with complex geometry using the main additive manufacturing (AM) technologies is presented in this paper, where the geometrical design of a desired ceramic component is combined with the materials design in order to reduce the fabrication times and product costs.
Journal ArticleDOI
Progress in 3D bioprinting technology for tissue/organ regenerative engineering
TL;DR: This review outlines recent progress in several bioprinting technologies used to engineer scaffolds with requisite mechanical, structural, and biological complexity and examines the process parameters affecting biop printing and bioink-biomaterials and concludes with the future perspective of biopprinting technology.
References
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Journal ArticleDOI
Capillary flow as the cause of ring stains from dried liquid drops
TL;DR: In this article, the authors ascribe the characteristic pattern of the deposition to a form of capillary flow in which pinning of the contact line of the drying drop ensures that liquid evaporating from the edge is replenished by liquid from the interior.
Journal ArticleDOI
High-Resolution Inkjet Printing of All-Polymer Transistor Circuits
Henning Sirringhaus,Takeo Kawase,Richard H. Friend,Tatsuya Shimoda,M. Inbasekaran,Weishi Wu,E. P. Woo +6 more
TL;DR: It is shown that the use of substrate surface energy patterning to direct the flow of water-based conducting polymer inkjet droplets enables high-resolution definition of practical channel lengths of 5 micrometers, and high mobilities were achieved.
Journal ArticleDOI
Drop Impact Dynamics: Splashing, Spreading, Receding, Bouncing ...
TL;DR: In this article, a review deals with drop impacts on thin liquid layers and dry surfaces, referred to as splashing, and their propagation is discussed in detail, as well as some additional kindred, albeit nonsplashing, phenomena like drop spreading and deposition, receding (recoil), jetting, fingering, and rebound.
Journal ArticleDOI
Contact line deposits in an evaporating drop
TL;DR: A theory is described that predicts the flow velocity, the rate of growth of the ring, and the distribution of solute within the drop that is driven by the loss of solvent by evaporation and the geometrical constraint that the drop maintain an equilibrium droplet shape with a fixed boundary.
Journal ArticleDOI
Inkjet Printing of Polymers: State of the Art and Future Developments
TL;DR: Inkjet printing is considered to be a key technology in the field of defined polymer deposition as mentioned in this paper, and a short overview of the available instrumentation is given, including manufacturing of multicolor polymer light-emitting diode displays, polymer electronics, three-dimensional printing, and oral dosage forms for controlled drug release.