Perovskites - materials of the future in optical communication

Inorganic metal halide perovskite-based photodetectors for optical communication applications

19-Oct-2018 - Researchers at the universities in Linköping and Shenzhen have shown how an inorganic perovskite can be made into a cheap and efficient photodetector that transfers both text and music. "It's a promising material for future rapid optical communication", says Feng Gao, researcher at Linköping ...

Lighting the way for more efficient LEDs

02-Feb-2018 - Researchers at the U.S. Naval Research Laboratory (NRL) Center for Computational Materials Science, working with an international team of physicists, have revealed that nanocrystals made of cesium lead halide perovskites (CsPbX3), is the first discovered material which the ground exciton state is ...

Charge order and electron localization in a molecule-based solid

23-Jan-2018 - Charge ordering in cationic mixed-valence compounds is of crucial importance for materials science. The prototypic example for a transition from a charge-disordered to a charge-ordered state has been magnetite, Fe3O4, where Evert Verwey observed a sudden jump in resistivity near -150°C. In the ...

A fast reactor system to shorten the lifetime of long-lived fission products

15-Nov-2017 - A team of scientists at Tokyo Institute of Technology (Tokyo Tech) working in collaboration with Tohoku University, Tokyo City University and the Japan Atomic Energy Agency has proposed a novel approach to tackle the problem of radioactive waste disposal. The new method could dramatically reduce ...

How to combat radiological weapons

Safety assistance system warns of dirty bombs

04-Sep-2017 - The threat of terrorism in Europe has been on the rise in recent years, with experts and politicians particularly worried that terrorists might make use of dirty bombs. Fraunhofer researchers have developed a new system that will be able to detect possible carriers of radioactive substances, even ...

A semiconductor that can beat the heat

02-Aug-2017 - A newly discovered collective rattling effect in a type of crystalline semiconductor blocks most heat transfer while preserving high electrical conductivity - a rare pairing that scientists say could reduce heat buildup in electronic devices and turbine engines, among other possible ...

Smart atomic cloud solves Heisenberg's observation problem

14-Jul-2017 - Quantum physics: Scientists at the Niels Bohr Institute by University of Copenhagen have been instrumental in developing a 'hands-on' answer to a challenge intricately linked to a very fundamental principle in physics: Heisenberg's Uncertainty Principle. The NBI-researchers used laser light to ...

New-generation material removes iodine from water

09-Jun-2017 - Researchers at Dartmouth College have developed a new material that scrubs iodine from water for the first time. The breakthrough could hold the key to cleaning radioactive waste in nuclear reactors and after nuclear accidents like the 2011 Fukushima disaster. The new-generation microporous ...

Treated carbon pulls radioactive elements from water

20-Jan-2017 - Researchers at Rice University and Kazan Federal University in Russia have found a way to extract radioactivity from water and said their discovery could help purify the hundreds of millions of gallons of contaminated water stored after the Fukushima nuclear plant accident. They reported that ...

First intermetallic double salt with platinum

28-Nov-2016 - Scientists at the U.S. Department of Energy's Ames Laboratory are being credited with creating the first intermetallic double salt with platinum. Materials researchers Anja-Verena Mudring and Volodymyr Smetana were the first to create and accurately characterize the compound. Cesium platinide ...