When you throw certain elements together like hydrogen or oxygen, they can bond in pairs or even triplets, forming O2 (oxygen) or O3 (ozone), for instance. Shine two flashlights together, however and … crickets. The photons simply pass through each other like phantoms and there’s no reaction whatsoever. That’s because they have no mass or charge, though they can become highly energized in the form of X-rays or gamma rays.
“In a way, this mechanism is not too dissimilar to electron-hole recombination in semiconductor photodetectors,” exaplained Lozada-Hidalgo. While the mechanism may not be too different than semiconductor photodetectors, these devices are based on proton transport as opposed with all current photodetectors today, which are based on electron transport.
“One general philosophy for making something that can maintain high stress is to make it so strong that it’s unbreakable,” said Huang, professor of materials science and engineering in Northwestern’s McCormick School of Engineering.
Graphene. You know may know it as that wonder material that promises to change the way we build roads, craft smartphone screens, kill bacteria or even keep our feet cool. Composed of a one-atom thick sheet of carbon, graphene is thin and highly flexibility, strength and chemical stability. It also conducts electricity 100 times more effectively than copper and moves electrons 140 times faster than silicon (good for fast-charging).
A new type of ultra-thin solar panel made from living organisms could lead to next-generation electrical devices that can be made on a home printer, researchers say.
The easiest way to take graphene into the third dimension? Use a laser on it! Cancer detection possible?