Latest quantum dots Stories

It's not reruns of "The Jetsons", but researchers working at the National Institute of Standards and Technology (NIST) have developed a new microscopy technique that uses a process similar to how an old tube television produces a picture—cathodoluminescence—to image nanoscale features. Combining the best features of optical and scanning electron microscopy, the fast, versatile, and high-resolution technique allows scientists to view surface and subsurface features potentially as small as...

SAN MARCOS, Texas, June 6, 2013 /PRNewswire/ -- By Quantum Materials Corporation (OTCQB:QTMM) - Since 1950, Kasha's Rule (1), a principle of photochemistry, held true that if a source of light excited a molecule enough, the molecule would fluoresce in a single color. In 2011, the Alivasatos group at DOE's Lawrence Berkeley National Laboratory, using tetrapod quantum dots, broke Kasha's rule(2 )by causing them to emit two separate colors instead of just one. This dual emission is...

The Optical Society It's not easy going green. For home lighting applications, organic light emitting diodes (OLEDs) hold the promise of being both environmentally friendly and versatile. Though not as efficient as regular light-emitting diodes (LEDs), they offer a wider range of material choices and are more energy efficient than traditional lights. OLEDs can also be applied to flexible surfaces, which may lead to lights or television displays that can be rolled up and stowed in a pocket....

Quantum dots are tiny nanocrystals with extraordinary optical and electrical properties with possible uses in dye production, bioimaging, and solar energy production. Researchers at the University of Illinois at Chicago have developed a way to introduce precisely four copper ions into each and every quantum dot. The introduction of these "guest" ions, called doping, opens up possibilities for fine-tuning the optical properties of the quantum dots and producing spectacular colors. "When...

The latest research from a Kansas State University chemical engineer may help improve humidity and pressure sensors, particularly those used in outer space. Vikas Berry, William H. Honstead professor of chemical engineering, and his research team are using graphene quantum dots to improve sensing devices in a twofold project. The first part involves producing the graphene quantum dots, which are ultrasmall pieces of graphene. Graphene is a single-atom thick sheet of carbon atoms and has...

DUBLIN, April 26, 2013 /PRNewswire/ -- Research and Markets has announced the addition of the "The Global Market for Quantum Dots 2013" report to their offering.      (Logo: http://photos.prnewswire.com/prnh/20130307/600769 ) Quantum dots are fluorescent nanoparticles of semiconducting material. The color of light that they emit varies with the size of the dot, shifting toward the blue end of the spectrum, as they get smaller. Main applications for quantum dots are LED lighting,...

ALBANY, New York, April 17, 2013 /PRNewswire/ -- New Report Added in ResearchMoz Reports DatabaseQuantum Dot and Quantum Dot Display (QLED): Market Shares, Strategies, and Forecasts, Worldwide, Nanotechnology, 2013 to 2019 ResearchMoz announces that it has published a new study Quantum Dot and Quantum Dot Display (QLED): Market Shares, Strategies, and Forecasts, Worldwide, Nanotechnology, 2013 to 2019...

Surprising breakthrough could bolster quantum photonics, solar cell efficiency Scientists from the U.S. Department of Energy’s National Renewable Energy Laboratory and other labs have demonstrated a process whereby quantum dots can self-assemble at optimal locations in nanowires, a breakthrough that could improve solar cells, quantum computing, and lighting devices. A paper on the new technology, “Self-assembled Quantum Dots in a Nanowire System for Quantum Photonics,” appears in...

University of Rochester A new type of nanoscale engine has been proposed that would use quantum dots to generate electricity from waste heat, potentially making microcircuits more efficient. "The system is really a simple one, which exploits certain properties of quantum dots to harvest heat," Professor Andrew Jordan of the University of Rochester said. "Despite this simplicity, the power it could generate is still larger than any other nanoengine that has been considered until now."...

CARSON CITY, Nev., Feb. 12, 2013 /PRNewswire/ -- Quantum Materials Corporation (QMC) (OTCQB:QTMM) announces a new class of cadmium-free, non-REE, non-heavy metal tetrapod quantum dots (NHM-TPQD) developed to meet worldwide concerns regarding nanoparticle biocompatibility and sustainability. (Logo: http://photos.prnewswire.com/prnh/20121120/DA16554LOGO) QMC can produce industrial scale quantities of NHM-TPQD using proprietary continuous flow chemistry processes with over 90%...