Kleine Halbleiterstrukturen zeigen ähnliche Quanteneffekte wie einzelne Atome. Solche sogenannten Quantenpunkte nutzen Physiker der Universität Innsbruck, um paarweise Lichtteilchen zu produzieren. Das Team um Gregor Weihs kann so erstmals gezielt einzelne Photonenpaare erzeugen und auch direkt nachweisen.
The union of theory and practice makes broadband, low-loss optical devices practical, which is why two groups of Penn State engineers collaborated to design optical metamaterials that have custom applications that are easily manufactured.
This work represents a significant development in the measurement of magnetic thin film edge properties, which are especially important for nanodevices, such as magnetic memory cells, where the edge to area ratio is large.
A new study found that the concentrations of nine of eleven elements in EC aerosol were higher than or equal to the corresponding concentrations in conventional cigarette smoke. Many of the elements identified in EC aerosol are known to cause respiratory distress and disease.
During a roundtable discussion organised by The Parliament Magazine and Plastics Europe, a study was presented on whether nanomaterials present in food packaging could potentially migrate into the food and present risk consumers.
Using a highly sensitive method of measurement, HZB physicists have managed to localize defects in amorphous/crystalline silicon heterojunction solar cells. Now, for the first time ever, using computer simulations at Paderborn University, the scientists were able to determine the defects' exact locations and assign them to certain structures within the interface between the amorphous and crystalline phases.
Scientists are developing unique systems aimed at the spontaneous decontamination of a variety of materials via the incorporation of functional additives such as quaternary ammonium salt (QAS) biocides, polyoxometalates (POMs), fullerenes, and phthalocyanines capable of neutralizing chemical and biological agents.
Chemists at the University have developed a prototype medical dressing that detects the first signs of the lethal Toxic Shock Syndrome along with other burn wound infections and could potentially save the lives of children with serious burns.