Advances in solar cell technologies are rapidly changing the landscape of global energy supply. Conversion efficiencies are however ultimately limited to a maximum ~40% in conventional silicon-based solar cell designs.
We report isolation of antimonene, a new allotrope of antimony that consists on a single layer of atoms. Graphene is well-known by its tremendous potential applications; however the lack of electronic gap limits its use in the electronics technology.
The incorporation of magnetism to the long list of graphene capabilities has been pursued since its first isolation in 2004. The use of spin as an additional degree of freedom would represent a tremendous boost to the versatility of graphene based devices. On one hand, spin information transfer or spin diffusion phenomena are favored by the expected long spin relaxation times of graphene carriers.
12 November 2015
Viruses package their genome in a robust protein coat to protect it during transmission between cells and organisms. In a reaction termed uncoating, the virus is progressively weakened during entry into cells. At the end of the uncoating process the genome separates, becomes transcriptionally active, and initiates the production of progeny.
29 September 2015
The response of superconducting devices to electromagnetic radiation is a core concept implemented in diverse applications, ranging from the currently used voltage standard to single photon detectors in astronomy. Suprisingly, a sufficiently high power subgap radiation may stimulate superconductivity itself.