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3D-printed lithium-ion batteries

Wed, 2018-10-17 20:40
Electric vehicles and most electronic devices, such as cell phones and laptop computers, are powered by lithium-ion batteries. Until now, manufacturers have had to design their devices around the size and shape of commercially available batteries. But researchers have developed a new method to 3D print lithium-ion batteries in virtually any shape.

Electrical enhancement: Engineers speed up electrons in semiconductors

Wed, 2018-10-17 18:54
Researchers have sped up the movement of electrons in organic semiconductor films by two to three orders of magnitude. The speedier electronics could lead to improved solar power and transistor use across the world, according to the scientists.

Controlling organic semiconductor band gaps by electron-acceptor fluorination

Wed, 2018-10-17 17:38
Researchers synthesized a fluorinated electron-acceptor for use in organic semiconductors. The high electronegativity of the fluorine substituents enhanced the electron-accepting properties of the widely used electron-acceptor. The power conversion efficiency of a thin film solar cell based on the fluorinated product was shown to be significantly higher than that of a cell containing an unmodified analogue. The synthesized material could be applied in thin film organic solar cell devices.

Researchers quickly harvest 2-D materials, bringing them closer to commercialization

Fri, 2018-10-12 23:23
Researchers have developed a technique to harvest 2-inch diameter wafers of 2-D material within just a few minutes. They can then be stacked together to form an electronic device within an hour.

Research on light-matter interaction could improve electronic and optoelectronic devices

Thu, 2018-10-11 00:14
New research increases our understanding of how light interacts with atomically thin semiconductors and creates unique excitonic complex particles, multiple electrons, and holes strongly bound together.

Topology, symmetry and magnetism: Heusler, Weyl and Berry

Wed, 2018-10-10 19:06
Scientists have written a review paper about magnetic topological materials in the family of Heusler compounds. The review explains the connection between topology, symmetry and magnetism at a level suitable for undergraduate students in physics, chemistry and materials science with a basic knowledge of condensed matter physics.

Researchers develop 3D printed objects that can track and store how they are used

Wed, 2018-10-10 19:06
Engineers have developed 3D printed devices that can track and store their own use -- without using batteries or electronics. Instead, this system uses a method called backscatter, through which a device can share information by reflecting signals that have been transmitted to it with an antenna.

Lighting the way for new materials

Wed, 2018-10-10 03:26
Researchers are using metallic alloys to lighten the load and enhance the power of Soldier devices used on the battlefield.

New NIST method measures 3D polymer processing precisely

Tue, 2018-10-09 23:29
Recipes for three-dimensional (3D) printing, or additive manufacturing, of parts have required as much guesswork as science. Until now. Researchers have demonstrated a novel light-based atomic force microscopy (AFM) technique -- sample-coupled-resonance photorheology (SCRPR) -- that measures how and where a material's properties change in real time at the smallest scales during the curing process.

First example of a bioelectronic medicine

Tue, 2018-10-09 04:03
Researchers have developed the first example of a bioelectronic medicine: an implantable, biodegradable wireless device that speeds nerve regeneration and improves healing of a damaged nerve. Their device delivered pulses of electricity to damaged nerves in rats after a surgical repair process, accelerating the regrowth of nerves and enhancing the recovery of muscle strength and control. The device is the size of a dime and the thickness of a sheet of paper.

Route to flexible electronics made from exotic materials

Mon, 2018-10-08 21:16
Engineers have developed a technique to fabricate ultrathin semiconducting films made from a host of exotic materials other than silicon. To demonstrate their technique, the researchers fabricated flexible films made from gallium arsenide, gallium nitride, and lithium fluoride -- materials that exhibit better performance than silicon but until now have been prohibitively expensive to produce in functional devices.

Big discoveries about tiny particles

Mon, 2018-10-08 19:40
Understanding the mechanical properties of nanoparticles are essential to realizing their promise in being used to create exciting new products. This new research has taken a significant step toward gaining the knowledge that can lead to better performance with products using polymer nanoparticles.

Part-organic invention can be used in bendable mobile phones

Fri, 2018-10-05 20:45
Engineers have invented a semiconductor with organic and inorganic materials that can convert electricity into light very efficiently, and it is thin and flexible enough to help make devices such as mobile phones bendable.

Nanoscale pillars as a building block for future information technology

Fri, 2018-10-05 19:25
Researchers propose a new device concept that can efficiently transfer the information carried by electron spin to light at room temperature -- a stepping stone towards future information technology.

Enhancement of piezoelectric properties in organic polymers all in the molecules

Fri, 2018-10-05 00:10
The inability to alter intrinsic piezoelectric behavior in organic polymers hampers their application in flexible, wearable and biocompatible devices, according to researchers, but now a molecular approach can improve those piezoelectric properties.

Atomically thin, transition metal dichalcogenides could increase computer speed, memory by a million times

Tue, 2018-10-02 21:09
Transition metal dichalcogenides (TMDCs) possess optical properties that could be used to make computers run a million times faster and store information a million times more energy-efficiently, according to a new study.

Imaging accumulated charges at solid-electrolyte interfaces

Tue, 2018-10-02 20:00
Researchers have developed a three-dimensional open-loop electric potential microscopy technique to visualize the charge accumulation behavior at the interface between a solid electrode and liquid electrolyte. The technique was used for providing information about the charge distribution at the interface between a copper wire electrode and salt-based electrolyte. This technique increases our ability to probe nanoscale interfacial phenomena, making it useful for research in electronics, electrochemistry, and biology.

A 'recipe book' that creates color centers in silicon carbide crystals

Mon, 2018-10-01 22:33
Researchers are documenting the different temperature and proton dosages required to make defects that will further allow silicon carbide to be used for quantum technology.

Microresonators offer a simpler approach to sensing with light pulses

Mon, 2018-10-01 21:12
Researchers have found a way to implement an optical sensing system by using spatial multiplexing, a technique originally developed in optical-fiber communication. The method, which produces three independent streams of ultrashort optical pulses using a single continuous-wave laser and a single optical microresonator, is far simpler than existing technologies.

New electro-optic laser pulses 100 times faster than usual ultrafast light

Fri, 2018-09-28 00:23
Physicists have used common electronics to build a laser that pulses 100 times more often than conventional ultrafast lasers. The advance could extend the benefits of ultrafast science to new applications such as imaging of biological materials in real time.


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