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Metal oxide sandwiches: New option to manipulate properties of interfaces

Scientists have discovered a new approach to tailor interface properties of metal oxide sandwiches, allowing for the control of ferromagnetism and superconductivity. The team found that the charge transfer between materials strongly depends on the rare earth element used, enabling the manipulation of interfacial phases.

SourceHelmholtz-Zentrum Berlin für Materialien und Energie·JournalNature Physics·DateFeb 4, 2016

Researchers propose high-efficiency wireless power transfer system

Scientists from ITMO University developed a novel WPT system that maintains up to 80% transfer efficiency across 20 centimeters, making it suitable for commercial applications. The system uses spherical dielectric resonators and a higher-order resonant frequency mode to reduce power losses.

SourceITMO University·JournalApplied Physics Letters·DateFeb 3, 2016

Stacking 2-dimensional materials may lower cost of semiconductor devices

Researchers at North Carolina State University discovered that stacking 2D materials can create semiconductor junctions with efficient charge transfer, even when the crystalline structures don't match. This discovery could make the manufacture of semiconductor devices an order of magnitude less expensive.

SourceNorth Carolina State University·JournalNano Letters·DateDec 11, 2014

Competition for graphene

Researchers at Berkeley Lab have observed ultrafast charge transfer in MX2 materials, a new family of 2-D semiconductors. The recorded charge transfer time is comparable to the fastest times for organic photovoltaics, opening up potentially rich new avenues for photonics and optoelectronics.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature Nanotechnology·DateAug 26, 2014
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When is a molecule a molecule?

Scientists observe electrons jumping between molecular fragments up to a distance of about 20 Ångström, marking the transition from molecular to atomic regimes. The study provides insights into charge transfer mechanisms that play a role in numerous chemical processes, including photosynthesis and solar cells.

SourceDeutsches Elektronen-Synchrotron DESY·JournalScience·DateJul 17, 2014

Progress made in developing nanoscale electronics

Scientists have successfully directed charges through single molecules using a bi-layer arrangement of organic molecules, enabling precise control over electronic properties. This breakthrough brings us closer to nanoscale circuitry, which could be used in various applications such as OLEDs and biomedical devices.

SourceUniversity of Rochester·JournalAdvanced Materials Interfaces·DateApr 21, 2014

Pentagonal tiles pave the way towards organic electronics

Scientists at University of Cambridge and Rutgers University develop new class of organic thin films on surfaces, exhibiting unique properties ideal for high-density stable thin films. The findings pave the way for creating smaller electronic devices, replacing conventional fabrication techniques.

SourceUniversity of Cambridge·JournalPhysical Review Letters·DateMay 6, 2011

Precise measurement of phenomenon advances solar cell understanding

Scientists have made precise measurements of a key phenomenon in solar cells, shedding light on fundamental processes and paving the way for more efficient designs. The findings provide a crucial understanding of charge separation in chain-like structures.

SourceWashington University in St. Louis·JournalJournal of the American Chemical Society·DateNov 18, 2008
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Colour profile exposes stolen gems

Researchers use microspectrometry to map the unique color patterns of individual gems, revealing differences even among same-type stones. This technique could provide valuable information for gemstone authentication and potential recovery of stolen stones.

SourceNew Scientist·DateMar 9, 2005