Papers – Page 54 – TechConnect Briefs

Highly luminescent Ca3Sc2Si3O12:Ce3+ silicate garnet nano- and microparticles with 50-70% photoluminescence quantum yields as efficient phosphor converters for white LEDs

Levchuk I., Schröppel F., Römling L., Osvet A., Khaidukov N., Zorenko Y., Van Deun R., Batentschuk M., Brabec C.J., University of Erlangen-Nuremberg, DE

Solid state lighting based upon a combination of violet/blue light emitting diodes (LEDs) and a phosphor converter created enormous commercial interest because of the potentially higher efficacies and long lifetimes of these light sources. Most [...]

Silk biocomposites as flexible and biodegradable electrochemical sensors

Pal R.K., Yadavalli V.K., Virginia Commonwealth University, US

The convergence of naturally derived and synthetic polymers provides exciting opportunities to develop physiologically compliant bioelectronics systems. The combination of silk proteins and poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) enables the formation of functional biocomposites with unique properties. [...]

Aerosol Jet Printed Functional Nanoinks with High Reliability and Reconfigurability

Lan X., Nguyen E., Malingowski A., Gambin V., Tice J., Northrop Grumman Aerospace Systems, US

Printed electronic components have long been desired in the aerospace industry to enable prototyping, design verification, and concept validation at a much more rapid pace than photolithography or manual wire bonding processes. For satellites that [...]

The Electrochemical Printing Technique (EPT) for Flexible Electronics

Kadija I., ECSI Fibrotools, US

Contact Electroplating Technology (CET), a novel direct contact electroplating technology, enables electrochemical deposition of desired metals or alloys on patterned flexible substrates by direct uniform contact with the substrates. The capability to electroplate metals is [...]

New Paradigms on Materials Synthesis and Additive Manufacturing of Flexible Electronics for Energy Applications

Torres Arango M.A., Sierros K.A., West Virginia University, US

Innovations in materials and manufacturing are important enablers of new technologies across multiple engineering fields. Additive manufacturing comprises a group of revolutionary fabrication techniques, having as principle the addition of materials layer-by-layer to form a [...]

Direct imprinting of liquid silicon

Masuda T., Shimoda T., Japan Advanced Institute of Science and Technology, JP

Silicon is one of the most important materials for electronics. The most widespread process for microfabrication technology of silicon is photolithography including etching process. However, huge capital outlay and large-scale equipment has been recognized as [...]

Anisotropic mechanical performance of 3D printed polymers

Sebert A., Nelson J., Bertacco G., 3D Matter, US

As 3D printing continues to grow as a viable manufacturing process, quantification of the processing options and parameters will allow for better design and modeling of printed parts, or at least clearly understand the trade-offs [...]

Powder Metallurgy Characterization of Thermoelectric Materials for Selective Laser Melting

Batista N., El Desouky A., Crandall J., Wang S., Yang J., LeBlanc S., The George Washington University, US

Thermoelectric materials are semiconductors capable of converting heat into electrical energy. Traditional manufacturing of thermoelectric devices involves machining and assembly steps which limit device geometries, result in material loss, and introduce parasitic thermal and electrical [...]

UAM Printing for Rocket Engine Combustion Chambers

Bahn P., TGV Rockets, US

Rocket Engine combustion chambers face numerous environmental challenges: Tight Tolerances, High Temperatures, High Pressures, Oxidizing or Reducing Environments, Extreme Temperature Differentials, Cryogenic Fluids,vacuum exposure,, Often at the same time. Traditional manufacturing processes have been horrifically [...]

Pixel Sweeping Technology enabling 3D Printing of Large-Scale Objects with Delicate Details

He R., Shi W., Liu Y., Lehigh University, US

With the recent explosion of the 3D printing market, rapid prototyping of highly customized products has been made possible. Stereolithography based 3D printing is widely used in both industrial and consumer market due to the [...]