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Researchers in Sweden and the US say they have developed a technique to grow compositionally graded heterostructured materials along the axes of semiconducting nanowires. The method allows them to design and create complex nano-architectures in which electrons are confined and forced to move through a quasi-1D potential landscape. These types of structures could be used […]

Researchers at the University of Texas at Austin, Columbia University, and the IBS Center for Multdimensional Carbon Materials at the Ulsan National Institute of Science and Technology have developed a new way to make high-quality “Bernal-stacked” bilayer graphene – an important material for electronics and photonics. The material might be used in a variety of […]

A new technique that uses diamonds and quantum logic to detect the tiny magnetic fields of single molecules has been unveiled by researchers in the US and Germany. The team then used the technique to detect nuclear magnetic resonance (NMR) signals from single molecules of a common protein. The researchers are now refining the method […]

Researchers at the University of California at Berkeley and the Lawrence Berkeley National Laboratory have developed a new solution-based, cost-effective way to wrap reduced graphene oxide around the surface of ultrathin transparent conducting copper nanowires. The technique significantly improves the stability of the wires in air and reduces the amount of light scattered by the […]

The first boron films that are just one atom thick have been produced by a team of researchers at several institutes in the US. A preliminary study of the ultrathin material called “borophene” suggests that it displays a variety of fascinating and potentially useful properties, including direction-dependent conductivity. However, unlike graphene – which comprises a […]

Researchers at the University of Texas at Austin say that they have fabricated flexible radio-frequency transistors from molybdenum disulphide (MoS2) with the highest ever intrinsic cut-off frequency of 5.6 GHz and power gain of 3.3 GHz. The devices, which are grown by chemical vapour deposition on large sheets of silica, could find use in a […]

Scanning probe microscopy is ideal for studying the nanoworld because it allows researchers to measure the topographic, electronic, optical and magnetic properties of a sample depending on the type of probe employed. Spin-based quantum probes, for example, are particularly good for making such measurements, but until now have only been able to acquire images relatively […]

Researchers at the University of Michigan in the US in collaboration with teams in South Korea and Spain have made a new class of chiral composite nanomaterials whose optical properties can be modulated by simply stretching the structures. The composites, which contain chains of plasmonic colloidal gold nanoparticles dispersed in polymer thin films, might be […]