Graphene-based two-dimensional (2D) materials are promising candidates for a number of different energy applications. A particularly interesting one is in next generation supercapacitors, where graphene is being explored as an electrode material in combination with room temperature ionic liquids (ILs) as electrolytes. Because the amount of energy that can be stored in such supercapacitors critically depends on the electrode-electrolyte interface, there is considerable interest in understanding the structure and properties of the graphene/IL interface.
View Article and Find Full Text PDFThe low-mass X-ray binary 4U1705-44 exhibits dramatic long-term X-ray time variability with a timescale of several hundred days. The All-Sky Monitor () aboard the () and the Japanese () aboard the International Space Station together have continuously observed the source from December 1995 through May 2014. The combined data provide a continuous time series over fifty times the length of the timescale of interest.
View Article and Find Full Text PDFOne current key challenge in graphene research is to tune its charge carrier concentration, i.e., p- and n-type doping of graphene.
View Article and Find Full Text PDFThe 'graphene rush' that started almost a decade ago is far from over. The dazzling properties of graphene have long warranted a number of applications in various domains of science and technology. Harnessing the exceptional properties of graphene for practical applications however has proved to be a massive task.
View Article and Find Full Text PDFInsomnia is a common, often chronic medical disorder with significant medical and socioeconomic repercussions. However, unlike other medical conditions, there is intense debate as to whether the long-term treatment of insomnia is clinically appropriate. The perceived deleterious side effect of sedative-hypnotic medications may result in patients remaining untreated or undertreated.
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