Researchers from Los Alamos National Laboratory and the University of Milano-Bicocca have designed and synthesized a new generation of quantum dots for use in solar energy systems that overcome previous inefficiencies in harvesting sunlight. The study has been published in the journal Nature Photonics. Quantum dots, which are nanocrystals made of semiconducting materials, appeal to scientists for use in solar photovoltaics (solar panel systems) because of their versatility and low-cost. In particular, they are desirable for use in luminescent solar concentrators (LSCs), which are photon-management devices that serve as alternatives to optics-based solar concentration systems. LSCs are constructed from transparent materials containing emitters such as quantum dots. They concentrate solar radiation absorbed from a large area onto a significantly smaller solar cell, explains Victor Kilmov, one of the authors of the study. Quantum Dot Technology Could Lead To Solar Panel Windows
Compound Interest This latest graphic looks at the elements of Group 6. Unlike with Groups 3, 4 where ‘Crystallogens’ and ‘Icosagens’ are alternative names that are not officially recognised by IUPAC, ‘Chalcogens’ is an IUPAC accepted name for Group 6. Go figure. The ‘ch’ is pronounced as a hard c, like the ‘ch’ in ‘chemistry’, whilst the term chalcogen itself comes from the greek word ‘chalcos‘, and roughly translates as ‘ore-former’.
TV | Graphene - a 21st Century wonder discovery video transcript It's where science fiction meets science fact. A material 200 times stronger than steel - yet so light, even a block of its powder can balance on a flower.
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Ammonium dichromate is the inorganic compound with the formula (NH4)2Cr2O7. In this compound, as in all chromates and dichromates, chromium is in a +6 oxidation state, commonly known as hexavalent chromium. It is a salt consisting of ammonium ions and dichromate ions. Ammonium dichromate is sometimes known as Vesuvian Fire, because of its use in demonstrations of tabletop "volcanoes". It has been used in pyrotechnics and in the early days of photography. Properties At room temperature and pressure, the compound exists as orange, acidic crystals soluble in water and alcohol. Ammonium dichromate
Burning Mercury Thiocyanide Will Amaze You
Underwater Sparkling Wine
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