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Latest Quantum dot Stories

2010-07-01 12:02:29

Since Richard Feynman's first envisioned the quantum computer in 1982, there have been many studies of potential candidates -- computers that use quantum bits, or qubits, capable of holding an more than one value at a time and computing at speeds far beyond existing silicon-based machines for certain problems. Most of these candidate systems, such as atoms and semiconducting quantum dots, work for quantum computing, but only at very low temperatures. Now a team of researchers from the Wuhan...

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2010-06-18 08:04:34

Conventional solar cell efficiency could be increased from the current limit of 30 percent to more than 60 percent, suggests new research on semiconductor nanocrystals, or quantum dots, led by chemist Xiaoyang Zhu at The University of Texas at Austin. Zhu and his colleagues report their results in this week's Science. The scientists have discovered a method to capture the higher energy sunlight that is lost as heat in conventional solar cells. The maximum efficiency of the silicon solar cell...

2010-06-16 21:57:21

Open the door to quantum optoelectronic effects in the GaN-based system For the very first time, a team of researchers in Germany has introduced quantum dots in fully epitaxial nitride laser structures without the need for hybrid systems -- effectively eliminating the cumbersome method of combining different materials from epitaxy and evaporation. This should help pave the way to a further optimization of lasers and single photon emitters in the visible spectrum region, according to the team....

2010-05-26 11:29:46

Rice physicists dig theoretical wells to mine quantum dots Graphane is the material of choice for physicists on the cutting edge of materials science, and Rice University researchers are right there with the pack "“ and perhaps a little ahead. Researchers mentored by Boris Yakobson, a Rice professor of mechanical engineering and materials science and of chemistry, have discovered the strategic extraction of hydrogen atoms from a two-dimensional sheet of graphane naturally opens up...

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2010-05-18 13:14:13

Researchers Develop Lens-Less, Gold-Covered "Microlens" That Enhances Imaging Signal Without Increasing Noise Researchers from Rensselaer Polytechnic Institute have developed a new nanotechnology-based "microlens" that uses gold to boost the strength of infrared imaging and could lead to a new generation of ultra-powerful satellite cameras and night-vision devices. By leveraging the unique properties of nanoscale gold to "squeeze" light into tiny holes in the surface of the device, the...

2010-05-12 13:07:00

TEMPE, Ariz., May 12, /PRNewswire/ -- Solterra Renewable Technologies, a wholly owned subsidiary of Quantum Materials Corporation (OTC Bulletin Board: QTMM), today announced its participation in the Japanese External Trade Organization's (JETRO) program for bringing businesses to Japan. Building upon its tetrapod quantum dots and tetrapod quantum dot solar cells being developed in North America, Solterra has been selected to use JETRO's services and will be able to access potential business...

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2010-05-11 12:54:04

McGill researchers make important contribution to the development of quantum computing Physicists at McGill University have developed a system for measuring the energy involved in adding electrons to semi-conductor nanocrystals, also known as quantum dots "“ a technology that may revolutionize computing and other areas of science. Dr. Peter Grtter, McGill's Associate Dean of Research and Graduate Education, Faculty of Science, explains that his research team has developed a cantilever...

2010-05-11 09:17:00

TEMPE, Ariz., May 11 /PRNewswire-FirstCall/ -- Quantum Materials Corporation (OTC Bulletin Board: QTMM) (formerly Hague Corporation) today announced that its wholly owned subsidiary, Solterra Renewable Technologies, Inc., has appointed Toshi Ando to the newly created position of Senior Director Asian Business Development, reporting to the CEO. Based in Fremont California, Mr. Ando will focus on promoting alliances and strategic partnerships for the broader application of Solterra's quantum...

2010-04-22 07:05:00

TEMPE, Ariz., April 22 /PRNewswire-FirstCall/ -- Quantum Materials Corporation (OTC Bulletin Board: QTMM) (formerly Hague Corporation) today announced that its wholly owned subsidiary, Solterra Renewable Technologies, Inc., has entered into a process development agreement with a consortium of advanced chemistry companies in the Netherlands to validate high volume production methods for its proprietary low cost, high quality tetrapod quantum dots. This agreement is the product of the MOU...

2010-04-13 03:01:00

TEMPE, Ariz., April 13 /PRNewswire-FirstCall/ -- Hague Corporation today announced it has changed its name to "Quantum Materials Corporation" to better reflect its nanotechnology business. The company also announced that effective Tuesday April 13, 2010 it changed its ticker symbol from HGUE to QTMM. The ticker symbol Change will be effective with the start of trading on Tuesday morning, April 13, 2010. Quantum Materials Corporation is the parent company of Solterra Renewable...