Journal ArticleDOI
Inkjet printing as a deposition and patterning tool for polymers and inorganic particles
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This review primarily presents an overview of the investigations that have been conducted since 2003 into inkjet-printing polymers or metal-containing inks and mentions related activities.Abstract:
Inkjet printing is an attractive patterning technology, which has become increasingly accepted for a variety of industrial and scientific applications. This review primarily presents an overview of the investigations that have been conducted since 2003 into inkjet-printing polymers or metal-containing inks and mentions related activities. The first section discusses the droplet-formation process in piezoelectric drop-on-demand printheads and the physical properties that affect droplet formation and the resolution of inkjet-printed features. The second section deals with the issues that arise from printing polymers, such as printability and the output characteristics of devices made by this route. Finally, the challenges and achievements attached to inkjet printing metal-containing inks are discussed before concluding with a few remarks about the future of the field.read more
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3D bioprinting of tissues and organs
Sean V. Murphy,Anthony Atala +1 more
TL;DR: 3D bioprinting is being applied to regenerative medicine to address the need for tissues and organs suitable for transplantation and developing high-throughput 3D-bioprinted tissue models for research, drug discovery and toxicology.
Journal ArticleDOI
Inkjet Printing—Process and Its Applications
TL;DR: This Progress Report provides an update on recent developments in inkjet printing technology and its applications, which include organic thin-film transistors, light-emitting diodes, solar cells, conductive structures, memory devices, sensors, and biological/pharmaceutical tasks.
Journal ArticleDOI
Technologies for Printing Sensors and Electronics Over Large Flexible Substrates: A Review
TL;DR: In this article, a comprehensive review of various printing technologies, commonly used substrates and electronic materials is presented, including solution/dry printing and contact/noncontact printing technologies on the basis of technological, materials, and process-related developments in the field.
Journal ArticleDOI
Efficiency Roll-Off in Organic Light-Emitting Diodes
TL;DR: This review summarizes the current knowledge and provides a detailed description of the relevant principles for exciton-quenching mechanisms, both for phosphorescent and fluorescent emitter molecules, and further review methods that may reduce the roll-off and thus enable OLEDs to be used in high-brightness applications.
Journal ArticleDOI
Shape memory polymers: Past, present and future developments
TL;DR: Shape memory polymers (SMPs) as mentioned in this paper represent a highly interesting class of materials and have gained significant interest in recent years, thus, the variety of materials investigated virtually exploded and several promising shape memory effects have been developed.
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.
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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.
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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.
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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.
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Marangoni effect reverses coffee-ring depositions.
Hua Hu,Ronald G. Larson +1 more
TL;DR: It is shown here both experimentally and theoretically that the formation of "coffee-ring" deposits observed at the edge of drying water droplets requires not only a pinned contact line but also suppression of Marangoni flow.