Good vibrations for future quantum computers
(PhysOrg.com) -- The enigmatic quantum dot is the basic building block for quantum computers. EPFL physicists have developed a new theory which shows that dot symmetry is enough to account for most of their ...
Manufacturing method paves way for commercially viable quantum dot-based LEDs
University of Florida researchers may help resolve the public debate over America's future light source of choice: Edison's incandescent bulb or the more energy efficient compact fluorescent lamp. It could be neither.
Tiny tech, big results: Quantum dot solar cells increase solar conversion efficiency
Cadmium selenide quantum dots degrade in soil, releasing their toxic guts
Quantum dots made from cadmium and selenium degrade in soil, unleashing toxic cadmium and selenium ions into their surroundings, a University at Buffalo study has found.
Nanoscientists build antenna for light
University of Toronto researchers have derived inspiration from the photosynthetic apparatus in plants to engineer a new generation of nanomaterials that control and direct the energy absorbed from light.
Graphene quantum dots could lead to low-cost solar cells and OLEDs
Putting sunshine in the tank
Working with the Universities of East Anglia, York and Nottingham and using nanotechnology 100,000 times smaller than the thickness of a human hair, the researchers are working on harnessing the vast energy of the Sun to ...
Breaking Kasha's rule: Scientists find unique luminescence in tetrapod nanocrystals
Observation of a scientific rule being broken can sometimes lead to new knowledge and important applications. Such would seem to be the case when scientists with the U.S. Department of Energy (DOE)'s Lawrence ...
Vertical cavity quantum switch could lead us away from electronics-based computing
Researchers demonstrate electo-optic modulation of single photons from a quantum dot
(PhysOrg.com) -- In a recent article in Applied Physics Letters, CNST researchers demonstrated how commercially available electro-optic modulators can be used to tailor the single photon output of quantum dots (QDs) for us ...
At small scales, tug-of-war between electrons can lead to magnetism under surprising circumstances
(PhysOrg.com) -- At the smallest scales, magnetism may not work quite the way scientists expected, according to a recent paper in Physical Review Letters by Rafal Oszwaldowski and Igor Zutic of the Univer ...
Researchers crack full-spectrum solar challenge
In a paper published in Nature Photonics, U of T Engineering researchers report a new solar cell that may pave the way to inexpensive coatings that efficiently convert the sun's rays to electricity.
New inorganic semiconductor layers hold promise for solar energy
(PhysOrg.com) -- A team of researchers from the University of Chicago and the U.S. Department of Energy's (DOE) Argonne National Laboratory has demonstrated a method that could produce cheaper semiconductor ...
World's first 1.3µm wavelength quantum dot laser capable of operating in high-temperature environments
QD Laser, Fujitsu Laboratories, and the Institute for Nano Quantum Information Electronics, the University of Tokyo today announced the world's first successful operation of a 1.3µm wavelength semiconductor ...