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Latest quantum dots Stories

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2010-08-23 12:03:11

Breakthrough discovery enables nanoscale manipulation of the piezoelectric effect The generation of an electric field by the compression and expansion of solid materials is known as the piezoelectric effect, and it has a wide range of applications ranging from everyday items such as watches, motion sensors and precise positioning systems. Researchers at McGill University's Department of Chemistry have now discovered how to control this effect in nanoscale semiconductors called "quantum dots,"...

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2010-07-07 07:29:02

The tunable fluorescent nanoparticles known as quantum dots make ideal tools for distinguishing and identifying rare cancer cells in tissue biopsies, Emory and Georgia Tech scientists have demonstrated. An article to be featured on the cover of the July 15 issue of Analytical Chemistry describes how multicolor quantum dots linked to antibodies can distinguish the Reed-Sternberg cells that are characteristic of Hodgkin's lymphoma. "Our multicolor quantum dot staining method provides rapid...

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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...

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...

2010-04-07 08:30:00

TEMPE, Ariz., April 7 /PRNewswire-FirstCall/ -- Solterra Renewable Technologies, Inc. (http://www.solterrasolarcells.com), a solar technology and quantum dot manufacturing company (and a wholly owned subsidiary of Hague Corp. (OTC Bulletin Board: HGUE)) announced today that only 18 months after licensing what has been characterized as a disruptive technology, they will be offering incentive pricing on orders for research quantities of its high purity, uniform, tetrapod quantum dots from the...

2010-03-24 08:51:22

UCLA team couples quantum dots, silicon for room-temperature functionality As the electronics industry works toward developing smaller and more compact devices, the need to create new types of scaled-down semiconductors that are more efficient and use less power has become essential. In a study to be published in the April issue of Nature Materials (currently available online), researchers from UCLA's Henry Samueli School of Engineering and Applied Science describe the creation of a new...