Authors: George Rajna
Perovskite nanocrystals hold promise for improving a wide variety of optoelectronic devices-from lasers to light emitting diodes (LEDs)-but problems with their durability still limit the material's broad commercial use.  KU Leuven researchers from the Roeffaers Lab and the Hofkens Group have now put forward a very promising direct X-ray detector design, based on a rapidly emerging halide perovskite semiconductor, with chemical formula Cs2AgBiBr6.  Physicists at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) have proven that incoming light causes the electrons in warm perovskites to rotate, thus influencing the direction of the flow of electrical current.  Self-assembly and crystallisation of nanoparticles (NPs) is generally a complex process, based on the evaporation or precipitation of NP-building blocks.  New nanoparticle-based films that are more than 80 times thinner than a human hair may help to fill this need by providing materials that can holographically archive more than 1000 times more data than a DVD in a 10-by-10-centimeter piece of film.  Researches of scientists from South Ural State University are implemented within this area.  Following three years of extensive research, Hebrew University of Jerusalem (HU) physicist Dr. Uriel Levy and his team have created technology that will enable computers and all optic communication devices to run 100 times faster through terahertz microchips.  When the energy efficiency of electronics poses a challenge, magnetic materials may have a solution. 
Comments: 46 Pages.
[v1] 2019-11-30 12:37:24
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