A University at Buffalo research team has invented a new way to synthesize quantum dots -- luminescent nanocrystals made from semiconductor material.
Sometimes called artificial atoms, quantum dots have the potential to be used to build exciting new devices for biological and environmental sensing, quantum computing, lasers and telecommunications, among other applications.
The new technique developed by a team led by T.J. Mountziaris, Ph.D., professor of chemical and biological engineering in the UB School of Engineering and Applied Sciences, enables precise control of particle size by using a microemulsion template formed by "self-assembly." The process involves the direct mixing of a nonpolar substance (heptane), a polar substance (formamide) and an amphiphilic substance or surfactant (a block copolymer) to form a uniform dispersion of heptane droplets in formamide, stabilized by the surfactant.
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Etching Microstructures with Lasers
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For the first time ever, a cloud of ultra-cold atoms has been successfully created in space on board of a sounding rocket. The MAIUS mission demonstrates that quantum optical sensors can be operated even in harsh environments like space – a prerequi-site for finding answers to the most challenging questions of fundamental physics and an important innovation driver for everyday applications.
According to Albert Einstein's Equivalence Principle, all bodies are accelerated at the same rate by the Earth's gravity, regardless of their properties. This...
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
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