Sep 29, 2022 (Nanowerk Spotlight) Lightweight and flexible perovskite solar cells are a new technology in which photovoltaic cells are manufactured using roll-to-roll printing and coating methods to deposit all the functional materials such as perovskites on flexible plastic substrates. The ability to print them simply like printing newspapers also...
New light for shaping electron beams
Sep 29, 2022 (Nanowerk News) A new technique that combines electron microscopy and laser technology enables programmable, arbitrary shaping of electron beams. It can potentially be used for optimizing electron optics and for adaptive electron microscopy, maximizing sensitivity while minimizing beam-induced damage. This fundamental and disruptive technology was now demonstrated...
Webb reveals a galaxy sparkling with the universe’s oldest star clusters
Sep 29, 2022 (Nanowerk News) Using the James Webb Space Telescope (JWST), researchers from the CAnadian NIRISS Unbiased Cluster Survey (CANUCS) team have identified the most distant globular clusters ever discovered. These dense groups of millions of stars may be relics that contain the first and oldest stars in the...
Engineers develop ultra-strong aerogels with materials used in bullet-proof vests
Sep 29, 2022 (Nanowerk News) Aerogels are lightweight materials with extensive microscale pores, which could be used in thermal insulation, energy devices, aerospace structures, as well as emerging technologies of flexible electronics. However, traditional aerogels based on ceramics tend to be brittle, which limits their performance in load-bearing structures. Due...
Algae as microscopic biorefineries
Sep 29, 2022 (Nanowerk News) Fossil raw materials are limited and not available and extractable everywhere in the world – as we are becoming acutely aware of right now by the example of fossil fuels and rising energy prices. Renewable raw material sources will therefore play an increasingly important role...
Researchers intend to 3D print next-generation sodium-ion batteries
Sep 29, 2022 (Nanowerk News) Combining 3D printing technology with renewable materials and high temperature technology, a multidisciplinary project at Åbo Akademi University sets out to develop unique new-generation batteries that are both environmentally friendly and based on sodium instead of lithium. The increasing use of renewable energy as well...
Discovery of new nanowire assembly process could enable more powerful computer chips
Sep 29, 2022 (Nanowerk News) In a newly-published study (Small, "A Universal Pick-and-Place Assembly for Nanowires"), a team of researchers in Oxford University’s Department of Materials led by Harish Bhaskaran, Professor of Applied Nanomaterials, describe a breakthrough approach to pick up single nanowires from the growth substrate and place them...
Arrayed chirality
Sep 28, 2022 (Nanowerk News) Scientists from Japan have employed theoretical calculations to model the optical radiation force distribution induced by an arbitral light pattern including an interference pattern. Based on the simulations, they were able to fabricate nano-sized structures in array that may lead to new optical devices, such...
Novel carrier doping in p-type semiconductors enhances photovoltaic device performance by increasing hole concentration
Sep 28, 2022 (Nanowerk News) The carrier concentration and conductivity in p-type monovalent copper semiconductors can be significantly enhanced by adding alkali metal impurities, as shown recently by Tokyo Tech researchers. Doping with isovalent and larger-sized alkali metal ions effectively increased the free charge carrier concentration and the mechanism was...
Catalytic process with lignin could enable 100% sustainable aviation fuel
Sep 28, 2022 (Nanowerk News) An underutilized natural resource could be just what the airline industry needs to curb carbon emissions. Researchers at three institutions—the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL), the Massachusetts Institute of Technology (MIT), and Washington State University—report success in using lignin as a...