Friday, July 14, 2017

Researchers develop new transistor concept

The researchers use metal nanoparticles which are so small that they no longer show their metallic character under current flow but exhibit an energy gap caused by the Coulomb repulsion of the electrons among one another. Via a controlling voltage, this gap can be shifted energetically and the current can thus be switched on and off as desired.

Fluorine grants white graphene new powers

Researchers turn common insulator into a magnetic semiconductor.

New materials at the touch of a button

This research shows how a variety of different electronic properties - essentially new materials - can be realised simply by applying a magnetic field.

Probing 3D-printed nanostructures with high-speed atomic force microscopy

Researchers have implemented both in situ and online characterizations of 3D printed nanostructures by using a customized high-speed atomic force microscopy AFM inside the SEM chamber.

Nanoscale honeycomb structures used in low-cost carbon monoxide sensor

Researchers have developed a highly sensitive, low-cost nanosensor that can quickly detect minute changes in carbon monoxide levels, with potential applications in environmental pollution monitoring.

Physicists solve quantum point contact mystery

Near superfluid conditions prompt atoms to form pairs to pass through a narrow gate, finds a new mathematical analysis.

Coupling a nano-trumpet with a quantum dot enables precise position determination

Scientists have succeeded in coupling an extremely small quantum dot with 1,000 times larger trumpet-shaped nanowire. The movement of the nanowire can be detected with a sensitivity of 100 femtometers via the wavelength of the light emitted by the quantum dot.

A new approach to enhance stability of perovskite nanocrystals

A research group has introduced a new approach to enhance perovskite nanocrystal stability through a class of intrinsically crosslinkable and polymerizable ligands.

Controlling complex nanostructures with critical Casimir forces

Researchers show that the application of critical Casimir forces on multivalent patchy particles indeed allows fine control over the assembly of colloidal superstructures.