Physicists at Aalto University, Finland, have shown how a nanomechanical oscillator can be used for detection and amplification of feeble radio waves or microwaves. A measurement using such a tiny device, resembling a miniaturized guitar string, can be performed with the least possible disturbance.
Imec, Polyera and international chemical group Solvay have achieved a new world-record efficiency of 8.3% for polymer-based single junction organic solar cells in an inverted device stack. These excellent performance results represent a crucial step towards successful commercialization of organic photovoltaic cells.
The surprising discovery of a new way to tune and enhance thermal conductivity - a basic property generally considered to be fixed for a given material - gives engineers a new tool for managing thermal effects in smart phones and computers, lasers and a number of other powered devices.
Some molecules have unique and technologically useful optical properties; the medicinal properties of drugs depend on the direction of the twist; and within us twisted DNA can interact with different proteins. This twisting is called chirality and researchers at Case Western Reserve University have found they can use a macroscopic brute force to impose and induce a twist in an otherwise non-chiral molecule.
Einem Team von Physikern ist der Nachweis gelungen, dass auch die Elektronen in grossen Molekuelen - beispielsweise in organischen Halbleitern - mit hoher Praezision durch einzelne Orbitale beschrieben werden koennen.
Researchers at the Berkeley Lab have developed a promising new inexpensive technique for fabricating large-scale flexible and stretchable backplanes using semiconductor-enriched carbon nanotube solutions that yield networks of thin film transistors with superb electrical properties, including a charge carrier mobility that is dramatically higher than that of organic counterparts.
A team of scientists have made it easier to study atomic or subatomic-scale properties of the building blocks of matter (which also include protons, neutrons and electrons) known as fermions by slowing down the movement of a large quantity of gaseous atoms at ultra-low temperature.