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Now showing items 31-40 of 436
Size selection of dispersed, exfoliated graphene flakes by controlled centrifugation
(2012)
Liquid exfoliation of graphene generally results in flakes with lateral size of one micron or less on average, too small for many applications. In this paper we describe a method to separate an existing dispersion with ...
Effect of Chemical Precursors On the Optical and Electrical Properties of p‐Type Transparent Conducting Cr2O3:(Mg,N)
(2013)
Cr2O3:(Mg,N) has been reported as a p-type transparent conducting oxide. In this
contribution the effect of each precursor used for the deposition by spray-pyrolysis,
will be explored and their role in determining the ...
An experimental realisation of the Weaire-Phelan structure in monodisperse liquid foam
(2012)
The Weaire-Phelan (WP) structure is the lowest energy structure known of an ideal monodisperse foam in the dry limit. To date, it has not been realized in the laboratory. Instead Lord Kelvin's 1887 structure, which it ...
Can soap films be used as models for mortality studies?
(2018)
We report studies of the life expectancy of sets of parallel liquid films made from surfactant solution and contained in cylindrical perspex tubes. The tubes are sealed at the bottom and vertically placed. From our analysis ...
Magnetic interaction of Co ions near the {10\bar{1}0} ZnO surface
(2010)
Co-doped ZnO is the prototypical dilute magnetic oxide showing many of the characteristics of ferromagnetism. The microscopic origin of the long range order however remains elusive, since the conventional mechanisms for ...
Stability and capping of magnetite ultra-thin films
(2014)
Ultrathin films of Fe3O4 have been grown epitaxially on nearly lattice matched MgO(001). The stability of
4 nm thick films in ambient air and under annealing in an oxygen atmosphere at 200◦C has been studied. By
magneto ...
Large-scale mechanical peeling of boron nitride nanosheets by low-energy ball milling
(2011)
Mechanical cleavage by Scotch tape was the first method to produce graphene and is still widely used in laboratories. However, a critical problem of this method is the extremely low yield. We have tailored ball milling ...
Quantum transport of Au-S-S-Au nanoscale junctions
(2012)
Transport in S2 molecules sandwiched between Au electrodes is investigated with a combination of density functional theory and the non-equilibrium Green?s function method. We consider four different configurations and find ...
Variational pseudo-self-interaction-corrected density functional approach to the ab initio description of correlated solids and molecules
(2011)
We present a variational pseudo self-interaction correction density functional approach (VPSIC) to the ab initio theoretical description of correlated solids and molecules. The approach generalizes previous nonvariational ...
Photoresponsivity enhancement in monolayer MoS<inf>2</inf> by rapid O<inf>2</inf>:Ar plasma treatment
(2019)
We report up to ten-fold enhancement of the photoresponsivity of monolayer molybdenum disulfide (MoS2) by treatment with O2:Ar (1:3) plasma. We characterize the surface of plasma-exposed MoS2 by TEM, Raman, and PL mapping ...