(Karlsruher Institut für Technologie (KIT) ) From cell to module without loss of efficiency: Researchers at Karlsruhe Institute of Technology (KIT) have managed to produce perovskite solar modules with minimum scaling loss. For this purpose, they combined laser-based series interconnections with vacuum processing of all layers of the solar cell. They achieved an 18 percent efficiency on an area of four square centimeters - a world record for vacuum-processed perovskite solar modules.
(Karlsruher Institut für Technologie (KIT) ) High-temperature technologies enable electrothermal storage systems for large amounts of energy from renewable sources. Karlsruhe Institute of Technology (KIT), the German Aerospace Center (DLR), and the industry partner KSB have now launched the LIMELISA project to develop the necessary basis. Research is funded with EUR 3.8 million by the Federal Ministry for Economic Affairs and Energy.
(Karlsruher Institut für Technologie (KIT) ) Tungsten has the highest melting point of all metals, 3,422 degrees Celsius. This makes the material ideal for use at high temperatures in e.g. space rocket nozzles, heating elements of high-temperature furnaces, or the fusion reactor. However, the metal is highly brittle and, hence, difficult to process. Researchers of Karlsruhe Institute of Technology (KIT) have developed an innovative approach to making this brittle material soft. To process tungsten, they have determined new process parameters for electron beam melting.
(Karlsruher Institut für Technologie (KIT) ) Boundary conditions of shopping, such as shipping costs or travel time, are of central importance for individual store choices. Assessment of purchasing security, environmental protection aspects, and work conditions also come into play when deciding between online and local. This is found by a microeconometrical, representative study at Karlsruhe Institute of Technology (KIT) funded by the German Research Foundation. Some of its results are now reported in Papers in Applied Geography and Raumforschung und Raumordnung.
(Karlsruher Institut für Technologie (KIT) ) Low-temperature heat in the form of waste heat from industry or geothermal power plants offers big potential for sustainable and need-tailored power supply. The Modular Low-temperature Cycle Karlsruhe (MoNiKa), the only research facility of this kind in Europe, has now started operation at Karlsruhe Institute of Technology (KIT). Work is aimed at enhancing efficiency and environmental compatibility of the conversion of excessive heat into electric power by means of the organic Rankine cycle (ORC).
(Karlsruher Institut für Technologie (KIT) ) Light can be used to operate quantum information processing systems, e.g. quantum computers, quickly and efficiently. Researchers at Karlsruhe Institute of Technology (KIT) and Chimie ParisTech/CNRS have now significantly advanced the development of molecule-based materials suitable for use as light-addressable fundamental quantum units. As they report in the journal Nature Communications, they have demonstrated for the first time the possibility of addressing nuclear spin levels of a molecular complex of europium(III) rare-earth ions with light.
(Karlsruher Institut für Technologie (KIT) ) The high-tech company Phytonics, a spinoff from the Karlsruhe Institute of Technology (KIT), gets inspired by plants: The Phytonics film with micro- and nanostructures modeled on rose petals provides an anti-reflective coating for all kinds of surfaces, makes solar modules up to ten percent more efficient, and gives many objects a noble velvety appearance. At the Hannover Messe 2021 from April 12 to 16, the innovation will be showcased at KIT's virtual booth "Future Hub."
(Karlsruher Institut für Technologie (KIT) ) A plant-inspired anti-reflective film, a flexible production system for individualized products, a digital assembly assistant, the world's smallest transistor, and climate-neutral synthetic fuels. Karlsruhe Institute of Technology (KIT) will present these and other research and innovation topics at the Hannover Messe 2021. At the digital event from April 12 to 16, KIT will showcase selected highlights at the virtual booths "Future Hub" and "Energy Solutions". Live stream with short presentations on April 13 and 14.
(Karlsruher Institut für Technologie (KIT) ) So far lithium-ion battery cells, for e.g. electric mobility, have been produced in standardized formats and rigid systems. Scientists of Karlsruhe Institute of Technology (KIT) are now developing an agile production system for flexible battery cell production in terms of format, material, and quantity. AgiloBat2 started in 2021 and is funded by the Federal Ministry of Education and Research (BMBF) with a total of EUR 14.5 million.
(Karlsruher Institut für Technologie (KIT) ) Drought, heat, and pest infestation: Climate change is threatening forests in Germany and represents a big challenge in forest management. A joint project of Karlsruhe Institute of Technology (KIT) and EDI GmbH, a spinoff of KIT, now provides support. Together with partners in the forestry sector, they are developing the EDE 4.0 assistance system. Based on artificial intelligence (AI), it helps foresters preserve and sustainably manage forests.
(National University of Science and Technology MISIS) A Russian-German research team has created a quantum sensor that grants access to measurement and manipulation of individual two-level defects in qubits. The study by NUST MISIS, Russian Quantum Center and the Karlsruhe Institute of Technology, published in npj Quantum Information, may pave the way for quantum computing.
(Karlsruher Institut für Technologie (KIT) ) The project LogIKTram is aimed at increasingly shifting goods transportation from road to rail even for short to medium distances. The electric mobility solutions to be developed for commercial services in cities and regions will be based on the use of existing tram and railway infrastructures. The project partners will devise a technical and logistical concept for a "goods tram" in Karlsruhe and will study the impacts on both road and rail traffic.
(Karlsruher Institut für Technologie (KIT) ) Perovskite semiconductors are considered promising materials for solar cells of the next generation. Suitability of a semiconductor for photovoltaics is reflected among others by the so-called photoluminescence quantum efficiency. Researchers of Karlsruhe Institute of Technology (KIT) have now developed a model, by means of which photoluminescence quantum efficiency of perovskite films can be determined exactly for the first time. This is reported in Matter (DOI: 10.1016/j.matt.2021.01.019).
(Karlsruher Institut für Technologie (KIT) ) Large data volumes arise when testing highly automated vehicles. The new KIsSME project reduces data volumes to save storage capacity, power, and evaluation expenditure and, at the same time, at compressing data to enhance vehicle safety. Algorithms based on AI select data in the driving mode and sort them into scenario catalogs. Within the project funded by the Federal Ministry for Economic Affairs, Karlsruhe Institute of Technology (KIT) supplies data from test drives and simulations.
(University of Heidelberg) Ribonucleic acid (RNA) is key to various fundamental biological processes. It transfers genetic information, translates it into proteins or supports gene regulation. To achieve a more detailed understanding of the precise functions it performs, researchers based at Heidelberg University and at the Karlsruhe Institute of Technology have devised a new fluorescence imaging method which enables live-cell RNA imaging with unprecedented resolution.
(Frontiers) Researchers from the Karlsruhe Institute of Technology show that DNA can serve as a scaffold for light-harvesting supramolecules, where fluorescent dyes work as electron donors and buckyballs as electron acceptors. The DNA's regular 3D structure increases the light-to-electrons conversion efficiency by reducing so-called self-quenching. Such DNA-based supramolecules could be used in future organic solar cells.
(Karlsruher Institut für Technologie (KIT) ) Software and hardware of networked embedded systems have to meet highest requirements in terms of safety, security, real-time capability, energy and resource efficiency. Within the XANDAR project coordinated by KIT, eight partners from science and industry will develop a complete toolchain for software development and hardware/software integration for complex applications on future processor platforms, e.g. in autonomous vehicles or future urban-air mobility concepts. The European Commission funds the project with a total of about EUR 5 million.
(Karlsruher Institut für Technologie (KIT) ) Recycling and optimized resource cycles, second use, and knowledge-based cell design are expected to enhance sustainability and safety of lithium-ion batteries in future. The basis is now provided by process engineers and materials scientists of Karlsruhe Institute of Technology (KIT), who jointly study the battery lifecycle. The new research projects are carried out within the battery research clusters "greenBatt" and "BattNutzung" funded by the Federal Ministry of Education and Research (BMBF).
(Karlsruher Institut für Technologie (KIT) ) Thermoelectric generators, TEGs for short, convert ambient heat into electrical power. They enable maintenance-free, environmentally friendly, and autonomous power supply of the continuously growing number of sensors and devices for the Internet of Things (IoT) and recovery of waste heat. Scientists of Karlsruhe Institute of Technology (KIT) have now developed three-dimensional component architectures based on novel, printable thermoelectric materials. The results are reported in npj Flexible Electronics (DOI: 10.1038/s41528-020-00098-1) and ACS Energy Letters (DOI: 10.1021/acsenergylett.0c02159)
(Karlsruher Institut für Technologie (KIT) ) Use of waste heat contributes largely to sustainable energy supply. Scientists of Karlsruhe Institute of Technology (KIT) and T?hoku University in Japan have now come much closer to their goal of converting waste heat into electrical power at small temperature differences. As reported in Joule, electrical power per footprint of thermomagnetic generators based on Heusler alloy films has been increased by a factor of 3.4. (DOI: 10.1016/j.joule.2020.10.019)