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Solar-battery effect enables a new light-driven organic microswimmer to operate in the dark

30 seconds of illuminationis enough and the microswimmer has power for about half an hour

07-Oct-2020

The propulsion resulting from external sources of energy makes microswimmers highly attractive, active devices that show great promise for potential applications in fields of biomedical and environmental technology. Targeted drug delivery in hard-to-reach areas of the body is one example. Another ...

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A touch of gold and silver

For the first time, it is possible to produce crystalline layers of precious metals that consist of a single atomic layer and which are semiconducting

05-Jun-2020

Metals are usually characterized by good electrical conductivity. This applies in particular to gold and silver. However, researchers from the Max Planck Institute for Solid State Research in Stuttgart, together with partners in Pisa and Lund, have now discovered that some precious metals lose ...

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The Higgs boson and superconductivity

New form of spectroscopy provides insights for the development of resistance-free current transport at ambient temperature

20-May-2020

Without the Higgs mechanism, particles would have no mass. The Higgs boson, which was discovered in 2012, is therefore also referred to as the “God particle”. It arises as an oscillating excitation of the Higgs field, which penetrates the world. Superconductivity displays similar properties. ...

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A closer look at superconductors

A new measuring method helps understand the physics of high-temperature superconductivity

11-May-2020

From sustainable energy to quantum computers: high-temperature superconductors have the potential to revolutionize today’s technologies. Despite intensive research, however, we still lack the necessary basic understanding to develop these complex materials for widespread application. "Higgs ...

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An ultrafast microscope for the quantum world

28-Jan-2020

Processes taking place inside tiny electronic components or in molecules can now be filmed at a resolution of a few hundred attoseconds and down to the individual atom. The operation of components for future computers can now be filmed in HD quality, so to speak. Manish Garg and Klaus Kern, ...

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Sensor the size of a nitrogen atom investigates hard drives

04-Jan-2018

Integrated circuitry is becoming increasingly complex. These days a Pentium processor contains some 30 million transistors. And the magnetic structures found in hard drives measure just 10 to 20 nanometers across – less than a flu virus at 80 to 120 nanometers in diameter. Dimensions are rapidly ...

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Hydrogen from sunlight - but as a dark reaction

Generation, storage, and time-delayed release of electrons in graphitic carbon nitride material for artificial photosynthesis

13-Dec-2016

The storage of photogenerated electric energy and its release on demand are still among the main obstacles in artificial photosynthesis. One of the most promising, recently identified photocatalytic new materials is inexpensive graphitic carbon nitride. Scientists have now explored a modified ...

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Hydrogen for all seasons

02-Oct-2015

LMU chemists have developed novel porous materials called “covalent organic frameworks”, which provide a basis for the design of polymeric photocatalysts with tunable physical, chemical and electronic properties. Chemical systems that are capable of generating hydrogen gas by light-activated ...

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Synthesis of structurally pure carbon nanotubes using molecular seeds

08-Aug-2014

For the first time, researchers at Empa and the Max Planck Institute for Solid State Research have succeeded in "growing" single-wall carbon nanotubes (CNT) with a single predefined structure - and hence with identical electronic properties. And here is how they pulled it off: the CNTs "assembled ...

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Resistance makes waves

There is a growing understanding of the conditions required for superconductivity and how it can be achieved at realistic temperatures

02-Jan-2014

Even physics can give pointers for energy saving. An international team working together with the Centre for Quantum Materials, run by the Max Planck Society in conjunction with the University of British Columbia (Canada), is now in a position to provide materials scientists with tips for the ...

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