Diamonds are prized for their purity, but their flaws might hold the key to a new type of highly secure communications. Researchers are using diamonds to preserve fragile quantum information over long distances.
As consumers demand smaller, faster and more powerful electronic devices that draw more current and generate more heat, the issue of heat management is reaching a bottleneck. Researchers have created a potential solution -- boron arsenide crystals with high thermal conductivity, which might be used in future electronics to help keep devices from overheating.
Scientists have developed stable single-crystalline porous hydrogen-bonded organic frameworks that are thermally and chemically durable and have large surface area and fluorescence properties. Through one-dimensionally stacked molecules and hydrogen-bonding, they fabricated the stable and rigid frameworks despite these frameworks consisting of weak hydrogen-bonded carboxylic acid.
Physicists are on the hunt for nitrogen containing molecules in space. Using terahertz spectroscopy, they directly measured two spectral lines for one particular molecule for the first time. The discovered frequencies are characteristic of the amide ion, a negatively charged nitrogen molecule. With the spectral lines now determined, this species can be searched for in space.
A research team has successfully recorded the sound of methane bubbles from the seafloor off the Oregon coast, opening the door to using acoustics to identify -- and perhaps quantify -- this important greenhouse gas in the ocean.
For decades, chemists have been mixing metals and carbon to create novel molecules, from the world's longest molecular wires to microscopic gyroscopes controllable by cage size, molecular access and even progress toward unidirectional rotation via external electrical field manipulation.
Scientists have aligned two hexahelicenes in various orientations, theoretically examined, and proposed that S- and X-shaped double hexahelicenes aligned in right symmetry were a key to improve the properties of helicenes. The researchers then synthesized double hexahelicenes to demonstrate their improved chiroptical properties as chiral materials: circular dichroism and circularly polarized luminescence.
Researchers have found a cheap, sustainable way to build a solar cell using bacteria that convert light to energy. Their cell generated a current stronger than any previously recorded from such a device, and worked as efficiently in dim light as in bright light. This innovation could be a step toward wider adoption of solar power in places like British Columbia and parts of northern Europe where overcast skies are common.
Electrical circuits are constantly being scaled down and extended with specific functions. A new method now allows electrical contact to be established with simple molecules on a conventional silicon chip. The technique promises to bring advances in sensor technology and medicine.
As climate change continues to push summer temperatures ever higher, the increased use of air conditioning in buildings could add to the problems of a warming world by further degrading air quality and compounding the toll of air pollution on human health, according to a new study.
Environmentally friendly building trends have boosted the popularity of window coatings that keep heating and cooling costs down by blocking out unneeded parts of sunlight. They have also inspired scientists and engineers to create thin, see-through solar cells to turn windows into miniature electricity generators. Researchers have gone a step further and combined these two functions into one window-compatible material that could double the energy efficiency of an average household.