Optical nanocavity to boost light absorption in semiconductors
Associated with unhappy visits to the dentist, "cavity" means something else in the branch of physics known as optics.
'Invisible' particles could enhance thermoelectric devices
Thermoelectric devices—which can either generate an electric current from a difference in temperature or use electricity to produce heating or cooling without moving parts—have been explored in the laboratory since the ...
Color-tunable photonic fibers mimic the fruit of the 'bastard hogberry' plant
(Phys.org)—A team of materials scientists at Harvard University and the University of Exeter, UK, have invented a new fiber that changes color when stretched. Inspired by nature, the researchers identified and replicated ...
LG Chem cable batteries may reshape mobile designs
Researchers make powerful new microscale torsional muscle/motor from vanadium dioxide (w/ Video)
Vanadium dioxide is poised to join the pantheon of superstars in the materials world. Already prized for its extraordinary ability to change size, shape and physical identity, vanadium dioxide can now add muscle power to ...
Flexible silicon solar-cell fabrics may soon become possible
For the first time, a silicon-based optical fiber with solar-cell capabilities has been developed that has been shown to be scalable to many meters in length. The research opens the door to the possibility of weaving together ...
Scientists develop indium-free organic light-emitting diodes
(Phys.org)—Scientists at the U.S. Department of Energy's (DOE) Ames Laboratory have discovered new ways of using a well-known polymer in organic light emitting diodes (OLEDs), which could eliminate the need for an increasingly ...
NJIT researchers invent flexible battery made from carbon nanotubes
Researchers at NJIT have developed a flexible battery made with carbon nanotubes that could potentially power electronic devices with flexible displays.
Researchers show short laser pulses selectively heat gold nanoparticles
(Phys.org)—Plasmonic gold nanoparticles make pinpoint heating on demand possible. Now Rice University researchers have found a way to selectively heat diverse nanoparticles that could advance their use in medicine and industry.