source:manufacturingtodayindiaResearchers at Ruhr University Bochum, Germany, have developed a new concept for switches with an unprecedented speed that becomes conductive thousands of times faster than current state-of-art semiconductor-based switches. Such switches are used in computers, smartphones, and wireless communications.Essentially, a short but powerful laser pulse converts the water into a conductive state within less than a trillionth of a second (10-12 seconds), during which time it behaves almost like a metal.To create the switch, researchers used a highly concentrated sodium iod...
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2022
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Spectra stable deep-blue light-emitting diodes based on cryolite-like cerium(III) halides with nanosecond d-f emission source：scienceAbstractNext-generation wide color gamut displays require the development of efficient and toxic-free light-emitting materials meeting the crucial Rec. 2020 standard. With the rapid progress of green and red perovskite light-emitting diodes (PeLEDs), blue PeLEDs remain a central challenge because of the undesirable color coordinates and poor spectra stability. Here, we report Cs3CeBrxI6−x (x = 0 to 6) with the cryolite-like structure and stable and tunable c...
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2022
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source:positive.newsResearchers in the US have finally fulfilled an objective that was set decades ago: the achievement of ‘ignition’ – getting more energy out than you put in – using nuclear fusion.The scientists at the Lawrence Livermore National Laboratory’s National Ignition Facility (NIF), where the experiment took place, are no doubt both excited and relieved to finally fulfil the promise implied by the name of their facility. But how excited should the rest of us be? What does this really mean for the possibility of creating effectively unlimited amounts of clean energy, and what else n...
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2022
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For the First Time: Scientists Have Formed a Charged Rare Earth Molecule on a Metal Surface and Rotated It source:scitechdaily“Rare earth elements are vital for high-technological applications including cell phones, HDTVs, and more. This is the first-time formation of rare-earth complexes with positive and negative charges on a metal surface and also the first-time demonstration of atomic-level control over their rotation,” said team lead Saw-Wai Hla, who has dual appointments as a scientist at Argonne and professor of physics and astronomy in the College of Arts and Sciences at Ohio Univ...
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2022
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