Researchers have developed an optical fibre laser that emits pulses with durations equivalent to just a few wavelengths of the light used. This fastest ever device based on graphene will be ideal for use in ultrafast spectroscopy, and in surgical lasers that avoid heat damage to living tissue.
Engineering experts from Ulster University and the University of Cambridge have received 2.8 million pounds of funding for research into a carbon-based material that could transform the global manufacturing sector.
Researchers have developed a way to make these structures grow in an electron microscope. By recording the atoms self-assembling to form the whiskers - renamed in modern fashion as nanowires - they hope to understand how they grow and how to tune the growth conditions to build nano-devices.
Loads of cosmetics like sunscreen lotions contain titanium dioxide. These nanoparticles are contentious. But it is difficult to prove that the particles are in the lotions. Using a newly developed method, the particles can now be calculated.
Scientists have been making nanoparticles for more than two decades in two-dimensional sheets, three-dimensional crystals and random clusters. But they have never been able to get a sheet of nanoparticles to curve or fold into a complex three-dimensional structure. Now researchers have found a simple way to do exactly that.
A synthetic membrane that self assembles and is easily produced may lead to better gas separation, water purification, drug delivery and DNA recognition, according to an international team of researchers.
Researchers have developed a transparent electrode with high electrical conductivity for solar cells and other optoelectronic components - that uses minimal amounts of material. It consists of a random network of silver nanowires that is coated with aluminium-doped zinc oxide. The novel electrode requires about 70 times less silver than conventional silver grid electrodes, but possesses comparable electrical conductivity.