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Metamaterial for the terahertz age

Tailored quantum materials as a high-efficiency frequency booster


An international research team, comprising scientists from the Helmholtz-Zentrum Dresden-Rossendorf (HZDR), the Catalan Institute of Nanoscience and Nanotechnology and JMU Würzburg, has found a way of generating terahertz radiation by frequency conversion much more efficient than with previous ...


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Artificial Enzyme Splits Water

Progress has been made on the path to sunlight-driven production of hydrogen


Chemists from Würzburg present a new enzyme-like molecular catalyst for water oxidation. Mankind is facing a central challenge: it must manage the transition to a sustainable and carbon dioxide-neutral energy economy. Hydrogen is considered a promising alternative to fossil fuels. It can be ...


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Microdrones With Light-driven Nanomotors

Completely new options for the usually extremely difficult handling of nano- and micro-objects


Propelling micrometre-sized drones using light only and exerting precise control: Physicists at the University of Würzburg have succeeded at this for the first time. Their microdrones are significantly smaller than red blood cells. A hand-held laser pointer produces no noticeable recoil forces ...


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Revealing New States in 2D Materials

Researchers have highlighted and quantified a three-fold coupling between exciton, photon, and phonon in a microcavity with embedded two-dimensional materials


Atomically thin two-dimensional (2D) materials can provide highly interesting excitonic properties, which render them an attractive platform to explore polaritonic physics. In the literature, a variety of inorganic exciton-polariton systems have been studied experimentally and described ...


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Sustainable Chemistry Based on Wood

Producing materials for solar cells, light-emitting diodes and other organic electronics applications as sustainably as possible


Some hikers carry a small solar power plant with them: a foil is attached to their backpack that converts sunlight into electricity. This allows them to charge their mobile phone while on the move. Flexible, thin and lightweight solar panels can also be attached to outdoor clothing or glued to ...


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Electron conspiracy in a Japanese lattice pattern: kagome metals baffle science

Toward a new kind of superconductivity


In the past four years scientists have discovered metals whose crystal structure mimics that of a traditional Japanese woven bamboo pattern: kagome metals. The international research activity in this new direction of quantum materials has recently reached a new climax: an international team of ...


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Columns Designed from Nanographenes

Several layers of nanographenes stacked on top of each other: such functional elements could one day be used in solar cells


Graphene is a carbon material that forms extremely thin layers. Because of its unusual properties, it is interesting for many technical applications. This also applies to polycyclic aromatic hydrocarbons (PAHs), which can be regarded as cut-outs of graphene. They are considered promising ...


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Triangular Honeycombs: Physicists design novel quantum material

Topological quantum materials with distinctive advantages


Researchers from the Würzburg-Dresden Cluster of Excellence ct.qmat–Complexity and Topology in Quantum Matter – have conceived and realized a new quantum material: "Indenene". Consisting of a single layer of the chemical element Indium, indenene enriches the family of the so-called topological ...


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New Coating for Plastics to Fight Bacteria off

Startup Flux Polymers receives funding


The start-up Flux Polymers, which has its roots at the University of Würzburg, offers a simple and easy solution to keep plastic surfaces free of bacteria. Recently, it has found an investor and can now start its operational business. In clinics and medical practices, it is crucial to work with ...


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Team tracks real-time molecular motions

Important new insights into a key process for the development of more efficient solar cells


The efficiency of solar cells can be significantly increased with a certain physical effect. A research team has now observed in detail for the first time how molecular movements influence this effect. Researchers from the Fritz Haber Institute (FHI) in Berlin, the Max Planck Institute for the ...


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