Liquid Crystals (LC) are widely deployed in display technology and optical fibres. From smartphones in your pockets to large screen TVs, LCs are everywhere, as this special state of matter has been found in colorful soap bubbles as well as certain living tissues. But LCs are by no means limited to use in gadgets or electronic devices. For quite some time, scientists have been studying the possibility of creating “active nematics”, a particular class of active LCs, which consist of…

Austrian pyhsicists are able to devise a design principle for the self-assembly of functionalized molecules. The production of nanomaterials involves self-assembly processes of functionalized (organic) molecules on inorganic surfaces. This combination of organic and inorganic components is essential for applications in organic electronics and other areas of nanotechnology. Until now, certain desired surface properties were often achieved on a trial-and-error basis. Molecules were chemically modified until the best result for the desired surface property was found. However, the processes controlling…

Trust first … In order to use electronic devices securely and reliably, it is important to know where they were manufactured, how they operate and how they are constructed. Although there are currently a number of technical solutions for trusted electronics, there is still no consistent methodology for trustworthiness that adequately covers the entire value chain. This is where the research project “Velektronik”, which started in March 2021, comes in. Fraunhofer IPMS is working on trusted manufacturing processes of elec-tronic…

… as environmentally friendly and cost-efficient alternative. The SUPERSMART research project funded by EIT RawMaterials has shown proof: printed electronic components such as sensors and smart labels on paper can play an essential role in building a smart environment for production, retail and logistics. Efficient and reliable production processes make them economically competitive. In terms of resource conservation, climate and the environment, electronics printed on paper have outstanding advantages over conventional substrates and manufacturing processes for smart electronic components. Yesterday…

With “DiWan” Fraunhofer IWS takes materials testing to a new level. Scientists of the Fraunhofer Institute for Material and Beam Technology IWS at Dresden in cooperation with partners from research and industry are planning to create a virtual materials expert system. This system will offer interfaces to publicly available know-how such as the latest scientific papers on materials and relevant standards as well as the practical knowledge of experts. The artificial assistant will provide this accumulated expertise to its human…

Researchers at UniSA have developed a cost-effective technique that could deliver safe drinking water to millions of vulnerable people using cheap, sustainable materials and sunlight. Less than 3 per cent of the world’s water is fresh, and due to the pressures of climate change, pollution, and shifting population patterns, in many areas this already scarce resource is becoming scarcer. Currently, 1.42 billion people – including 450 million children – live in areas of high, or extremely high, water vulnerability, and…

Study shows how to make stable and large aerogels that remove heavy metals, organic solvents, organic dyes. Graphene excels at removing contaminants from water, but it’s not yet a commercially viable use of the wonder material. That could be changing. In a recent study, University at Buffalo engineers report a new process of 3D printing graphene aerogels that they say overcomes two key hurdles — scalability and creating a version of the material that’s stable enough for repeated use —…

Fraunhofer ISE achieves 26 percent … A team of researchers led by Dr. Armin Richter of the Fraunhofer Institute for Solar Energy Systems ISE achieved a record conversion efficiency of 26.0 percent for both-sides contacted silicon solar cells. In the recently published Nature Energy article “Design Rules for High-Efficiency Both-Sides-Contacted Silicon Solar Cell with Balanced Charge Carrier Transport and Recombination Losses”, Richter explains the structure of the record-breaking cell and presents fundamental design-related aspects leading to even higher efficiencies. The…

Nanothin antimicrobial coating could prevent and treat potentially deadly infections. Researchers have developed a new superbug-destroying coating that could be used on wound dressings and implants to prevent and treat potentially deadly bacterial and fungal infections. The material is one of the thinnest antimicrobial coatings developed to date and is effective against a broad range of drug-resistant bacteria and fungal cells, while leaving human cells unharmed. Antibiotic resistance is a major global health threat, causing at least 700,000 deaths a…

It’s an example of how surprising properties can spontaneously emerge in complex materials — a phenomenon scientists hope to harness for novel technologies. Creating a two-dimensional material, just a few atoms thick, is often an arduous process requiring sophisticated equipment. So scientists were surprised to see 2D puddles emerge inside a three-dimensional superconductor – a material that allows electrons to travel with 100% efficiency and zero resistance – with no prompting. Within those puddles, superconducting electrons acted as if they…

LED-based film-type haptic technology implements localized vibration. Various tactile sensations are now possible via independantly controllable vibrations. A Korean research team succeeded in developing a technology generating various vibration using LED light signals. The technology allows various tactile sensations by area and reduction in size by considerably lowering the cost of light source, and these are expected to be applied to many industries including automobile and electronics. The Electronics and Telecommunications Research Institute, or ETRI for short, announced that it…

A clean energy future propelled by hydrogen fuel depends on figuring out how to reliably and efficiently split water. That’s because, even though hydrogen is abundant, it must be derived from another substance that contains it — and today, that substance is often methane gas. Scientists are seeking ways to isolate this energy-carrying element without using fossil fuels. That would pave the way for hydrogen-fueled cars, for example, that emit only water and warm air at the tailpipe. Water, or…

Heidelberg scientists achieve defect control with a new reaction pathway. The properties of carbon-based nanomaterials can be altered and engineered through the deliberate introduction of certain structural “imperfections” or defects. The challenge, however, is to control the number and type of these defects. In the case of carbon nanotubes – microscopically small tubular compounds that emit light in the near-infrared – chemists and materials scientists at Heidelberg University led by Prof. Dr Jana Zaumseil have now demonstrated a new reaction…

It may be possible in the future to use information technology where electron spin is used to store, process and transfer information in quantum computers. It has long been the goal of scientists to be able to use spin-based quantum information technology at room temperature. A team of researchers from Sweden, Finland and Japan have now constructed a semiconductor component in which information can be efficiently exchanged between electron spin and light at room temperature and above. The new method…

Pioneering study co-led by Berkeley Lab has significance for next-gen information technologies. A decade ago, the discovery of quasiparticles called magnetic skyrmions provided important new clues into how microscopic spin textures will enable spintronics, a new class of electronics that use the orientation of an electron’s spin rather than its charge to encode data. But although scientists have made big advances in this very young field, they still don’t fully understand how to design spintronics materials that would allow for…

By binding specific ions in specially designed cages within its pores, a new membrane could enable more efficient flows in energy storage devices. Membranes that allow certain molecules to quickly pass through while blocking others are key enablers for energy technologies from batteries and fuel cells to resource refinement and water purification. For example, membranes in a battery separating the two terminals help to prevent short circuits, while also allowing the transport of charged particles, or ions, needed to maintain…