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Latest Quantum Electronics Stories

2011-06-25 00:00:32

This breakthrough in production process not only enables the low cost, high volume production of quantum dots, but also provides flexibility in the choice of materials used to produce the quantum dots including heavy metal free (Cadmium Free) quantum dots and other biologically inert materials. (PRWEB) June 23, 2011 Quantum Materials Corp and the Access2Flow Consortium of the Netherlands today announce that continuous production of Tetrapod Quantum Dots has been achieved using its...

2011-05-05 09:08:00

TROY, N.Y. and SEOUL, South Korea, May 5, 2011 /PRNewswire/ -- Evident Technologies, Inc. and Samsung Electronics Co., Ltd have entered into a comprehensive patent licensing and purchasing agreement for Evident's quantum dot LED technology. This agreement grants Samsung worldwide access to Evident's patent portfolio for all products related to quantum dot LEDs from manufacture of the quantum dot nanomaterials to final LED production. "We are excited that Samsung, the leader in consumer...

2011-04-04 17:27:11

Researchers at the Hebrew University of Jerusalem have achieved a breakthrough in the field of nanoscience by successfully altering nanocrystal properties with impurity atoms -- a process called doping "“ thereby opening the way for the manufacture of improved semiconductor nanocrystals. Semiconductor nanocrystals consist of tens to thousands of atoms and are 10,000 times smaller than the width of a human hair. These tiny particles have uses in a host of fields, such as solid-state...

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2011-03-27 11:15:00

Researchers study quantum dots to increase the amount of electricity solar panels produceStudies done by Mark Lusk and colleagues at the Colorado School of Mines could significantly improve the efficiency of solar cells. Their latest work describes how the size of light-absorbing particles--quantum dots--affects the particles' ability to transfer energy to electrons to generate electricity.The results are published in the April issue of the journal ACS Nano.The advance provides evidence to...

2011-03-17 12:02:59

A team of physicists in the United Kingdom has taken a giant step toward realizing efficient single-photon sources, which are expected to enable much-coveted completely secure optical communications, also known as "quantum cryptography." The team presents its findings in Applied Physics Letters, a journal published by the American Institute of Physics. Fluorescent "defect centers" in diamond act like atomic-scale light sources and are trapped in a transparent material that's large enough to...

2011-02-24 17:38:04

Like snowflakes or fingerprints, no two quantum dots are identical. But a new etching method for shaping and positioning these semiconductor nanocrystals might change that. What's more, tests at the National Institute of Standards and Technology (NIST) confirm that etched quantum dots emit single particles of light (photons), boosting prospects for powering new types of devices for quantum communications. The conventional way to build quantum dots"”at NIST and elsewhere"”is to...

2011-02-20 22:09:48

The sun provides more than enough energy for all our needs, if only we could harness it cheaply and efficiently. Solar energy could provide a clean alternative to fossil fuels, but the high cost of solar cells has been a major barrier to their widespread use. Stanford researchers have found that adding a single layer of organic molecules to a solar cell can increase its efficiency three-fold and could lead to cheaper, more efficient solar panels. Their results were published online in ACS...

2011-02-10 00:14:01

Chemical compounds called manganites have been studied for many years since the discovery of colossal magnetoresistance, a property that promises important applications in the fields of magnetic sensors, magnetic random access memories and spintronic devices. However, understanding"”and ultimately controlling"”this effect remains a challenge, because much about manganite physics is still not known. A research team lead by Maria Baldini from Stanford University and Carnegie...

2010-12-21 08:00:00

CAMBRIDGE, Mass., Dec. 21, 2010 /PRNewswire/ -- Raytheon BBN Technologies, a wholly owned subsidiary of Raytheon Company (NYSE: RTN), has been awarded $2.1 million in funding by DARPA (the Defense Advanced Research Projects Agency) for two projects under the Information in a Photon, or InPho, program. The goal of the two projects is to develop new theory and experimental techniques that enable optical communications and imaging systems to operate at their ultimate limits of information...

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2010-12-14 11:02:26

Newly fabricated devices are a step toward quantum computing Moving a step closer toward quantum computing, a research team in the Netherlands recently fabricated a photodetector based on a single nanowire, in which the active element is a single quantum dot with a volume of a mere 7,000 cubic nanometers. The device is described in the American Institute of Physics' journal Applied Physics Letters. Photodetectors based on single quantum dots are expected to find uses in optoelectrical...


Word of the Day
attercop
  • A spider.
  • Figuratively, a peevish, testy, ill-natured person.
'Attercop' comes from the Old English 'atorcoppe,' where 'atter' means 'poison, venom' and‎ 'cop' means 'spider.' 'Coppa' is a derivative of 'cop,' top, summit, round head, or 'copp,' cup, vessel, which refers to 'the supposed venomous properties of spiders,' says the OED. 'Copp' is still found in the word 'cobweb.'
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