What limits the behaviour of a carbon nanotube? This is a question that many scientists are trying to answer. Physicists at University of Gothenburg, Sweden, have now shown that electromechanical principles are valid also at the nanometre scale. In this way, the unique properties of carbon nanotubes can be combined with classical physics - and this may prove useful in the quantum computers of the future.
An international research team has discovered a new method to produce belts of graphene called nanoribbons. By using hydrogen, they have managed to unzip single-walled carbon nanotubes. The method also opens the road for producing nanoribbons of graphane, a modified and promising version of graphene.
Scientists from CINF, CASE, Stanford University and SLAC National Accelerator Laboratory have engineered a cheap, abundant alternative to the expensive platinum catalyst and coupled it with a light-absorbing electrode to make hydrogen fuel from sunlight and water.
Researchers from the Basque nanoscience research center CIC nanoGUNE and Neaspec GmbH (Germany) have developed an instrument that allows for recording infrared spectra with a thermal source at a resolution that is 100 times better than in conventional infrared spectroscopy.
Combining the unique optical properties and potential for surface functionality of silicon nanostructures with the electronic properties of quantum dots offers exciting prospects for biological and optoelectronic applications. In particular, silicon nanowires coated with metal nanoparticles are known to display enhanced optical properties that could be used as the basis for more-efficient, longer-lasting biological sensors.
The U.S. Environmental Protection Agency (EPA) is issuing a significant new use rule (SNUR) under section 5(a)(2) of the Toxic Substances Control Act (TSCA) for the chemical substance identified generically as multi-walled carbon nanotubes (MWCNT) which was the subject of premanufacture notice (PMN) P-08-199.
A bold new design for thin film solar cells that requires significantly less silicon - and may boost their efficiency - is the result of an industry/academia collaboration between Oerlikon Solar in Switzerland and the Institute of Physics' photovoltaic group at the Academy of Sciences of the Czech Republic.