It defies conventional wisdom about semiconductors. It’s baffling that it even works. It eludes physics models that try to explain it. This newly tested class of light-emitting semiconductors is so easy to produce from solution that it could be painted onto surfaces to light up our future in myriad colors shining from affordable lasers, LEDs, and even window glass.
Piezoelectric materials, which generate an electric current when compressed or stretched, are familiar and widely used: lighters that spark when you press a switch, microphones, sensors, motors and all kinds of other devices. Now a group of physicists has found a material with a similar property, but for magnetism. This ‘piezomagnetic’ material changes its magnetic properties when put under mechanical strain.
Chemists describe design and synthesis of a pi-conjugation-extended viologen molecule as a novel, two-electron storage anolyte for neutral total organic aqueous redox flow batteries.
Graphene, a naturally black material, could provide a new strategy for dyeing dark hair that will make it less prone to staticky flyaways. Researchers have put it to the test. They used sheets of graphene to make a dye that adheres to the surface of hair, forming a coating that is resistant to 30 washes without the need for chemicals that damage the hair cuticle.
Researchers have produced a ‘human scale’ demonstration of a new phase of matter called quadrupole topological insulators that was recently predicted using theoretical physics. These are the first experimental findings to validate this theory.
Scientists have shown that an organic-based magnet can carry waves of quantum mechanical magnetization, called magnons, and convert those waves to electrical signals. It’s a breakthrough for the field of magnonics (electronic systems that use magnons instead of electrons) because magnons had previously been sent through inorganic materials that are more difficult to handle.
Scientists have developed a technique for analyzing structural and electronic fluctuations on the single-molecule scale across the metal-molecule interface in an organic electronic device. This technique provides information that cannot be obtained using the conventional method, and it has important implications for devices such as organic solar cells.
Researchers have developed new technology for switching heat flows ‘on’ or ‘off’.
Researchers have demonstrated for the first time a working rechargeable ‘proton battery’ that could re-wire how we power our homes, vehicles and devices.
Researchers have discovered more details about the way certain materials hold a static charge even after two surfaces separate, information that could help improve devices that leverage such energy as a power source.