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A variety of ultrathin nanomechanical diffraction gratings that have been fashioned from the “wonder material” graphene have been created by an international team of researchers. The team wanted to reduce the thickness of such gratings to the ultimate physical limit – that of a single atom. The researchers say that their graphene gratings are 10 times […]

Researchers in Switzerland, Germany and the US are reporting on a new bottom-up approach to fabricate hexagonal boron-nitrogen-carbon (h-BNC) heterostructures with atomically precise BN/C boundaries and BN to C ratios. These structures could be ideal for a variety of electronics and nonlinear optics applications………… http://nanotechweb.org/cws/article/tech/62394 On-surface synthesis of BNC

The “wonder material” graphene has another significant quality to add to its impressive list of electrical and mechanical properties: superconductivity. Physicists in Canada and Germany have shown that graphene turns into a superconductor when doped with lithium atoms – a result that could lead to a new generation of superconducting nanoscale devices…………. http://nanotechweb.org/cws/article/tech/62404 Super conductor: […]

An international research team has used carbon nanotubes to enhance the efficiency of laser acceleration, bringing table-top sources for carbon-ion therapy a step closer to reality. Therapeutic ion beams are currently delivered using large, expensive particle accelerators. Laser-driven ion acceleration may one day provide a compact, cost-effective alternative – but current techniques cannot match the […]

Researchers at the University of Oxford and the Rutherford Appleton Laboratory in the UK are the first to have observed a carbon dimer structure that “hangs off” the edge of monolayer graphene (a sheet of carbon just one atom thick). Finding this feature, called a Klein Edge Doublet (KLD), predicted to exist in theory, helps […]

A simple solution-processing step that crosslinks perovskite grain surfaces can improve the stability of these efficient solar cell materials. This new result, from researchers in Switzerland and China, could help in the future commercialization of these low-cost emergent semiconductors……….. http://nanotechweb.org/cws/article/tech/62296 Crystal crosslinkers and crosslinked perovskite

Researchers at the Hebrew University of Jerusalem in Israel and Philipps-Universität Marburg in Germany have developed DNA microcapsules carrying anti-cancer drugs that can release their payload in response to specific biomarker stimuli. Targeting microcapsules to infected cells, such as cancer cells, is challenging so the new work is an important step forward in this field…… […]

The operational efficiency of optoelectronic devices hinges on how the energy of injected electrons dissipates. But how these processes occur in nanostructures, which are predominantly surface with little bulk material, has been little understood. Now, studies of theluminescence under a scanning tunnelling microscope (STM) tip have revealed the dominant processes in electron energy dissipation at […]