3 Jan 2020
Harnessing Hot Carriers for High Efficiency Solar Cells
Two-dimensional solar materials may offer a way to extract more energy from sunlight. By tuning the structure of a 2D perovskite solar material, researchers have shown they can prolong the lifetime of highly energetic hot carriers generated by light striking the material. The approach could offer a way to capture solar energy more efficiently.
25 Dec 2019
Storing Medical Information Below the Skin's Surface
Every year, a lack of vaccination leads to about 1.5 million preventable deaths, primarily in developing nations. One factor that makes vaccination campaigns in those nations more difficult is that there is little infrastructure for storing medical records, so there's often no easy way to determine who needs a particular vaccine.
5 Dec 2019
Perovskite Nanocrystals More Durable with Plastic Hair and Silica
Perovskite nanocrystals hold promise for improving a wide variety of optoelectronic devices - from lasers to light emitting diodes - but problems with their durability still limit the material's broad commercial use.
12 Nov 2019
Novel Solar Cells Arrive at International Space Station for Testing
Five different types of solar cells have arrived at the International Space Station to be tested for their power conversion rate and ability to operate in the harsh space environment as part of the MISSE-12 mission. One type of cell, made of low-cost organic materials, has not been extensively tested in space before.
9 Oct 2019
3D printing technique accelerates nanoscale fabrication a thousandfold
Using a new time-based method to control light from an ultrafast laser, researchers have developed a nanoscale 3D printing technique that can fabricate tiny structures a thousand times faster than conventional two-photon lithography techniques, without sacrificing resolution.
8 Oct 2019
First UL 2904 GREENGUARD Certification for RIZE industrial 3D printer
RIZE, Inc became the first in the 3D printing industry to receive UL 2904 GREENGUARD Certification with its RIZE One Industrial 3DPrinter, as well as its Rizium One filament, Release and Marking inks. This certification is based on the new UL 2904 Method for Testing and Assessing Particle and Chemical Emissions from 3D Printers. The certification ushers in a new era of safety and sustainability that will expand the adoption of additive manufacturing.
24 Sep 2019
Shape-shifting robots built from 'smarticles'
Building conventional robots typically requires carefully combining components like motors, batteries, actuators, body segments, legs and wheels. Now, researchers have taken a new approach, building a robot entirely from smaller robots known as "smarticles" to unlock the principles of a potentially new locomotion technique.
24 Sep 2019
Wearable brain-machine interface could control a vehicle, computer
Combining new classes of nanomembrane electrodes with flexible electronics and a deep learning algorithm could help disabled people wirelessly control an electric wheelchair, interact with a computer or operate a small robotic vehicle without donning a bulky hair-electrode cap or contending with wires.
12 Sep 2019
Stretchy plastic electrolytes for new lithium-ion battery design
The growing popularity of lithium-ion batteries in recent years has put a strain on the world's supply of cobalt and nickel - two metals integral to current battery designs - and sent prices surging. In a bid to develop alternative designs for lithium-based batteries with less reliance on those scarce metals, researchers have developed a promising new cathode and electrolyte system that replaces expensive metals and traditional liquid electrolyte with lower cost transition metal fluorides and a solid polymer electrolyte.
4 Sep 2019
Stretchable wireless sensor could monitor healing of cerebral aneurysm
A wireless sensor small enough to be implanted in the blood vessels of the human brain could help clinicians evaluate the healing of aneurysms -- bulges that can cause death or serious injury if they burst. The stretchable sensor, which operates without batteries, would be wrapped around stents or diverters implanted to control blood flow in vessels affected by the aneurysms.
19 Aug 2019
A robot that can build its own tools
Thanks to new technology that enables them to create simple tools, robots may be on the verge of their own version of the Stone Age.
6 Aug 2019
Soft wearable health monitor uses stretchable electronics
A wireless, wearable monitor built with stretchable electronics could allow comfortable, long-term health monitoring of adults, babies and small children without concern for skin injury or allergic reactions caused by conventional adhesive sensors with conductive gels.
29 Jul 2019
LightSail 2 successfully deploys solar sail
The Planetary Society's LightSail 2 spacecraft has successfully deployed the large, aluminized Mylar sail it will use to raise its orbit solely with sunlight.
24 Jul 2019
Tiny vibration-powered robots are the size of the world's smallest ant
Researchers have created a new type of tiny 3D-printed robot that moves by harnessing vibration from piezoelectric actuators, ultrasound sources or even tiny speakers. Swarms of these "micro-bristle-bots" might work together to sense environmental changes, move materials - or perhaps one day repair injuries inside the human body.
10 Jul 2019
Tiny supersonic jet injection for nanoscale additive manufacturing
By energizing precursor molecules using a tiny, high-energy supersonic jet of inert gas, researchers have dramatically accelerated the fabrication of nanometer scale structures. The rapid additive manufacturing technique also allows them to produce structures with high aspect ratios. Now, a theory developed to describe the technique could lead to new applications for additive nanomanufacturing and new nanoscale materials.
5 Jun 2019
Slothbot takes a leisurely approach to environmental monitoring
For environmental monitoring, precision agriculture, infrastructure maintenance and certain security applications, slow and energy efficient can be better than fast and always needing a recharge. That's where "SlothBot" comes in.
17 May 2019
Army discovery opens path to safer batteries
Soldiers carrying 15-25 pounds of batteries could carry batteries a fraction of the weight but with the same energy and improved safety, a new study shows.
1 May 2019
Safer electrochromic inks
Anyone who has a rear-view mirror that automatically dims blue in reaction to annoying high-beam headlights glaring from behind has seen an electrochromic film in action. Chemists have developed a new method to more safely and, by extension, easily produce these shear films, which change their color with the help of a tiny electric current. This could make them available to many industries that have not been able to feasibly use them before.