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Magazine

Molecular Engineering for Mechanically Resilient and Stretchable Electronic Polymers and Composites

  • Magazine Article
  • TBMG-35664
Published 2019-12-01 by Tech Briefs Media Group in United States

The ability to predict the mechanical properties of organic semiconductors is of critical importance for roll-to-roll production and thermomechanical reliability of organic electronic devices. This research describes the use of coarse-grained molecular dynamics simulations to predict the density, tensile modulus, Poisson ratio, and glass transition temperature for poly(3-hexylthiophene) (P3HT) and its blend with C60. In particular, it is shown that the resolution of the coarse-grained model has a strong effect on the predicted properties.

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Packaging for SiC Sensors and Electronics

  • Magazine Article
  • TBMG-35699
Published 2019-12-01 by Tech Briefs Media Group in United States

Innovators at NASA’s Glenn Research Center have developed a planar, modular package that protects electronics and sensors more effectively in high-temperature conditions than previously available methods. Lack of reliability at high temperatures, due to poor packaging, have discouraged the global application and large-scale commercialization of high-temperature electronics and sensors.

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Molecular Engineering for Mechanically Resilient and Stretchable Electronic Polymers and Composites

Aerospace & Defense Technology: December 2019

  • Magazine Article
  • 19AERP12_10
Published 2019-12-01 by SAE International in United States

Establishing the design criteria for elasticity and ductility in conjugated polymers and composites by analysis of the structural determinants of the mechanical properties.

The ability to predict the mechanical properties of organic semiconductors is of critical importance for roll-to-roll production and thermomechanical reliability of organic electronic devices. This research describes the use of coarse-grained molecular dynamics simulations to predict the density, tensile modulus, Poisson ratio, and glass transition temperature for poly(3-hexylthiophene) (P3HT) and its blend with C60. In particular, it is shown that the resolution of the coarse-grained model has a strong effect on the predicted properties.

Annotation ability available

Smart Electronic Skin for Robots and Prosthetics

  • Magazine Article
  • TBMG-35452
Published 2019-11-01 by Tech Briefs Media Group in United States

Humans use the sense of touch to accomplish almost every daily task such as picking up a cup of coffee or shaking someone’s hand. Without it, humans can even lose their sense of balance when walking. Similarly, robots need to have a sense of touch in order to interact better with humans but robots today still cannot feel objects well.

Nylon Provides Building Block for Electronic Devices

  • Magazine Article
  • TBMG-35514
Published 2019-11-01 by Tech Briefs Media Group in United States

Thin nylon films are several 100 times thinner than human hair and could thus be attractive for applications in bendable electronic devices or for electronics in clothing. The researchers developed a method to fabricate ferroelectric nylon thin-film capacitors by dissolving nylon in a mixture of trifluoroacetic acid and acetone and solidifying it again in vacuum. They were able to realize thin nylon films that are typically only a few hundred nanometers thick.

Undercooled Metal Technology for Flexible Electronics

  • Magazine Article
  • TBMG-35427
Published 2019-11-01 by Tech Briefs Media Group in United States

Undercooled metal technology was developed that features liquid metal (in this case, Field's metal, an alloy of bismuth, indium, and tin) trapped below its melting point in polished, oxide shells, creating particles about 10-millionths of a meter across. When the shells are broken — with mechanical pressure or chemical dissolving — the metal inside flows and solidifies, creating a heat-free weld or, in this case, printing conductive, metallic lines and traces on all kinds of materials, from a concrete wall to a leaf.

Method Produces Three-Dimensional, Curved Electronics

  • Magazine Article
  • TBMG-35451
Published 2019-11-01 by Tech Briefs Media Group in United States

Contact lenses that can monitor the wearer’s health and correct eyesight use embedded electronics. These, and other curved devices such as solar cells and electronics, could be manufactured using a new method called conformal additive stamp (CAS) printing.

Printed Electronics for Electrified Tattoos and Personalized Biosensors

  • Magazine Article
  • TBMG-35458
Published 2019-11-01 by Tech Briefs Media Group in United States

A fully print-in-place technique for electronics could enable technologies such as high-adhesion, embedded electronic tattoos and bandages with patient-specific biosensors.

Atomically Thin Heat Shield Protects Electronic Devices

  • Magazine Article
  • TBMG-35266
Published 2019-10-01 by Tech Briefs Media Group in United States

Excess heat given off by smartphones, laptops, and other electronic devices contributes to malfunctions and, in extreme cases, can even cause lithium batteries to explode. To guard against issues, engineers often insert glass, plastic, or layers of air as insulation to prevent heat-generating components like microprocessors from causing damage.

Counter IED System

  • Magazine Article
  • TBMG-35356
Published 2019-10-01 by Tech Briefs Media Group in United States

Netline Communications Technologies Ltd. Tel Aviv, Israel