Nanogenerator's output triples previous record
Vibration energy the secret to self-powered electronics
(Phys.org) —A multi-university team of engineers has developed what could be a promising solution for charging smartphone batteries on the go—without the need for an electrical cord.
Hybrid energy harvester generates electricity from vibrations and sunlight
Retroreflector transmits light with negligible power consumption
Quick jolt of energy could improve energy harvesting by a factor of 40
Researchers generate electricity from viruses
Imagine charging your phone as you walk, thanks to a paper-thin generator embedded in the sole of your shoe. This futuristic scenario is now a little closer to reality. Scientists from the U.S. Department of Energy's Lawrence ...
Straintronics: Engineers create piezoelectric graphene
In what became known as the 'Scotch tape technique," researchers first extracted graphene with a piece of adhesive in 2004. Graphene is a single layer of carbon atoms arranged in a honeycomb, hexagonal pattern. ...
Piezoelectric 'taxel' arrays convert motion to electronic signals for tactile imaging
Using bundles of vertical zinc oxide nanowires, researchers have fabricated arrays of piezotronic transistors capable of converting mechanical motion directly into electronic controlling signals. The arrays ...
Sound waves precisely position nanowires
(Phys.org) —The smaller components become, the more difficult it is to create patterns in an economical and reproducible way, according to an interdisciplinary team of Penn State researchers who, using ...
Robot vision: Muscle-like action allows camera to mimic human eye movement
Using piezoelectric materials, researchers have replicated the muscle motion of the human eye to control camera systems in a way designed to improve the operation of robots. This new muscle-like action could ...
Zinc oxide microwires improve the performance of light-emitting diodes
Researchers have used zinc oxide microwires to significantly improve the efficiency at which gallium nitride light-emitting diodes (LED) convert electricity to ultraviolet light. The devices are believed to ...
Heart-powered pacemaker could one day eliminate battery-replacement surgery
A new power scheme for cardiac pacemakers turns to an unlikely source: vibrations from heartbeats themselves.
Most powerful millimeter-scale energy harvester generates electricity from vibrations
(PhysOrg.com) -- Electrical engineers at the University of Michigan have built a device that can harness energy from vibrations and convert it to electricity with five to ten times greater efficiency and power ...
New materials open door to electronics in extreme environments
A spin-out company from the University of Leeds is set to transform industry's ability to electronically monitor and interact with extreme environments.