A team of semiconductor researchers based in France has used a boron nitride separation layer to grow indium gallium nitride (InGaN) solar cells that were then lifted off their original sapphire substrate and placed onto a glass substrate.
By combining the InGaN cells with photovoltaic (PV) cells made from materials such as silicon or gallium arsenide, the new lift-off technique could facilitate fabrication of higher efficiency hybrid PV devices able to capture a broader spectrum of light. Such hybrid structures could theoretically boost solar cell efficiency as high as 30 percent for an InGaN/Si tandem device.
Lockheed Martin and Drone Racing League (DRL) announced an innovation competition, challenging teams to develop artificial intelligence (AI) technology that will enable an autonomous drone to race a pilot-operated drone – and win. Participating teams will compete in a series of challenges for their share of over $2 million in prizes.
Lockheed Martin Chief Technology Officer Keoki Jackson announced the challenge at TechCrunch Disrupt San Francisco, kicking off a multi-year partnership with DRL, the global professional circuit for drone racing. The AlphaPilot Innovation Challenge will enlist university students, technologists, coders and drone enthusiasts to push the boundaries of AI, machine learning (ML) and fully autonomous flight.
Fisker recently started another eponymous car company — this time called Fisker, Inc. — that is focused on all-electric vehicles. And while he flirted with using LG’s automotive lithium-ion batteries to power his forthcoming electric supercar, dubbed “Emotion,” Fisker tells The Verge his new company is now just a few months away from putting the finishing touches on the final design for a scalable solid-state battery that will power the sedan instead.
A wearable piezoelectric energy harvester developed by scientists from the Materials Research Institute at the Pennsylvania State University and the University of Utah produces enough power to run a personal health monitoring system.
BOLT is the most refined product from Sphero yet, compete with hardware that finally matches a great app experience that merges fun, creativity, and learning. Most importantly, BOLT will last a while and can grow with the user.
Think exceptional sight would be a cool superpower? You’re in luck: Researchers from the University of Minnesota have built a bionic eye prototype that could restore sight to the blind and give superhuman vision to those who can already see.
Australia’s Great Barrier Reef can’t catch a break: on top of contending with pollution, hurricanes, and back-to-back-to-back bouts of coral bleaching, the world’s most iconic reef is being eaten alive by millions of prickly, venomous sea stars known as crown-of-thorns starfish (COTS). But in a matchup befitting a sci-fi movie, scientists have developed a new robot to hunt and kill these sea stars—a murderous, autonomous underwater vehicle called RangerBot.
Liquid printing is virtually ubiquitous thanks to inkjets, but the materials can only be so sluggish before it stops working. What if you wanted to print a biological material, or even liquid metal? That might happen soon. Harvard researchers have developed a technique that uses acoustic levitation to print droplets of materials that wouldn't normally be so accommodating, including metal and honey. The approach uses a subwavelength acoustic resonator to create a sound field that pulls substances from the printer nozzle at over 100G -- even some of the most viscous materials can't resist that tug. You can control the size of the droplets using the amplitude of the soundwaves, and place them anywhere you like.
A fold-up computer screen has been unveiled by a group of researchers in Canada. Dubbed the ‘MagicScroll’ it’s being billed as the world’s ‘first rollable tablet PC’. The flexible display unrolls from around a cylindrical spindle into a 7.5-inch that can then be laid flat. There are two rotary wheels on each end that allow a user to unroll the display and scroll through contacts on the display. It can still be used when it’s rolled up, such as for making a phone call one-handed.
A sapphire-colored dye called methylene blue is a common ingredient in wastewater from textile mills.
But University at Buffalo scientists think it may be possible to give this industrial pollutant a second life. In a new study, they show that the dye, when dissolved in water, is good at storing and releasing energy on cue.