Newsletter from 2D Research |
MOST POPULAR ARTICLES• The observation of square ice in graphene questioned Writing in Nature Zhou et al. question the previous Nature letter which presented evidence of two-dimensional square ice, trapped between two graphene layers. Their main evidence is two-fold. Firstly, they show that sodium chloride crystallizes in a structure akin to that presented in the initial article, and secondly show through simulations that the structure of a graphene-confined 2D ice does not have a perfectly square structure, rather a rhombic one. In two accompanying replies to above, the authors of the initial paper still maintain that square ice can indeed be formed, since some of the features of the oxygen peaks do agree with recent theory work, although they do conclude that high resolution electron energy loss spectra looking for salts would unambiguously prove or disprove the contamination hypothesis. On the simulation front, the team shows that the rhomic, zig-zag structure is meta-stable, decaying into a square one in a matter of tens of nano-seconds, hence experimentally the lattice of ice will indeed show a square one. • Evidence for two dimensional Ising superconductivity in gated MoS2. Ionic-liquid gated molybdenum disulphide shows evidence of an Ising superconductor. • Recent advances in two dimensional materials beyond graphene A review articles by scientists from more 10 different institutions providing experimental and theoretical insights on the properties of two dimensional materials beyond graphene. • Fast growth of inch-sized single-crystalline graphene from a controlled single nucleus on Cu-Ni alloys Self-explained title: an optimized copper nickel alloy shows improved ability to decrease the nucleation density of carbon in order to create large 1.5-inch single crystals of graphene, with reduced synthesis time. • 1T-TaS2 in the two-dimensional limit Hexagonal boron nitride encapsulated 1T tantalum disulphide enables the characterization of this material in the 2D limit and that the conductance is dominated by discommensurations. • Electrically tunable bandgaps in bilayer MoS2 Dual gated bilayer molybdenum disulphide transistors show continuous bandgap tuning. |
PATENTS BRIEF• University of California publishes patent on metal-assisted transfer of CVD graphene. The technology is the basis of a university spinout, GrollTex LLC. Read patent US20150371848A1 • Gordon Chiu, Grafoid‘s CTO, publishes patent US20150368436A1 describing a method to prepare graphite/graphene oxide composite blocks which show superlubricity properties. • LG Electronics Inc publishes patent US20150368109 describing a method to improve quality of CVD graphene by applying tension to the catalyst copper layer, which increases its grain size. • University of Manchester published patent (US20150380625) on thermoelectric materials based on graphene. This work was published in the journal Applied Materials and Interfaces earlier last year. in collaboration with European Thermodynamics Ltd. |
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INDUSTRY NEWS• Elcora Graphene issues press release stating its graphene materials has been ranked first in a study by the National University of Singapore. The study from NUS is not yet published so details are not clear. Read the press release. • Directa Plus has commercially launched its mobile Grafysorber decontamination unit, housed in a container. Not many technical details are available, but read more at thepress release. • Graphene Frontiers features in a youtube video and their VP gives an insight in the company’s efforts to use graphene transistors as a biosensor. Watch the video. • Angstron Materials reportedly set to invest $1m to new facilities. Read the article. • Graphene 3D Lab partners with Jean-Charles Boisset (a winery group) to prepare an interactive table which can identify wines. Read the press release. |
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