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Hot electron solar cell

Hot Electrons Could Double Solar Cell Power Efficiency

Nanotechnology / Nanophysics

created Dec 18, 2009 | popularity 4.3 / 5 (15) | comments 2

Scientists have experimentally verified a theory suggesting that hot electrons could double the output of solar cells. The researchers, from Boston College, have built solar cells that successfully use hot ...


Physicists lay the groundwork for cooler, faster computing

Physics / Optics & Photonics

created Dec 14, 2009 | popularity 4.7 / 5 (25) | comments 5

University of Toronto quantum optics researchers Sajeev John and Xun Ma have discovered new behaviours of light within photonic crystals that could lead to faster optical information processing and compact computers that ...


Nanomedicine: ending 'hit and miss' design

Nanotechnology / Bio & Medicine

created Dec 08, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- One of the promises of nanomedicine is the design of tiny particles that can home in on diseased cells and get inside them. Nanoparticles can carry drugs into cells and tag cells for MRI and other diagnostic ...


Researchers Design Triple Quantum Dot for Quantum Information Applications

Researchers Design Triple Quantum Dot for Quantum Information Applications

Nanotechnology / Nanophysics

created Nov 30, 2009 | popularity 4.7 / 5 (18) | comments 0

(PhysOrg.com) -- While quantum dots have existed since the 1980s, only in the past decade have physicists successfully created lateral few-electron single quantum dots. These quantum dots enable physicists ...


Visual assistance for cosmic blind spots

Visual assistance for cosmic blind spots

Physics / General Physics

created Nov 23, 2009 | popularity 4.3 / 5 (3) | comments 0

A bit of imagination on the part of a measuring instrument wouldn't be a bad thing. It could help to add data from areas where the instrument is unable to measure. However, it must do so constructively. In ...


Using superconducting probes to get a picture of what it's like inside CNTs

Nanotechnology / Nanophysics

created Nov 20, 2009 | popularity 4.4 / 5 (9) | comments 0

(PhysOrg.com) -- "Carbon nanotubes are exciting for fundamental physics, and for potential technological applications," Nadya Mason tells PhysOrg.com. "However, we are generally limited in the way that we can study them. ...


Small nanoparticles bring big improvement to medical imaging

Small nanoparticles bring big improvement to medical imaging

Nanotechnology / Bio & Medicine

created Nov 18, 2009 | popularity 5 / 5 (3) | comments 0

If you're watching the complex processes in a living cell, it is easy to miss something important—especially if you are watching changes that take a long time to unfold and require high-spatial-resolution ...


JQI researchers create entangled photons from quantum dots

Physics / Quantum Physics

created Nov 18, 2009 | popularity 4.3 / 5 (8) | comments 1

To exploit the quantum world to the fullest, a key commodity is entanglement—the spooky, distance-defying link that can form between objects such as atoms even when they are completely shielded from one another. Now, physicists ...


Penn study: Transforming nanowires into nano-tools using cation exchange reactions

Transforming nanowires into nano-tools using cation exchange reactions

Nanotechnology / Nanophysics

created Oct 23, 2009 | popularity not rated yet | comments 0

A team of engineers from the University of Pennsylvania has transformed simple nanowires into reconfigurable materials and circuits, demonstrating a novel, self-assembling method for chemically creating nanoscale ...


Tiny technology may yield major finds -- and possible perils

Nanotechnology / Bio & Medicine

created Oct 13, 2009 | popularity 5 / 5 (7) | comments 3

Imagine a particle so small it would take a million of them to stretch across the period at the end of this sentence. Imagine such particles could help catch cancer cells floating in your bloodstream before they could metastasize ...


Physicists Demonstrate Three-Color Entanglement

Physicists Demonstrate Three-Color Entanglement

Physics / Quantum Physics

created Oct 07, 2009 | popularity 4.3 / 5 (25) | comments 3

(PhysOrg.com) -- For the first time, physicists have demonstrated the quantum entanglement of three light beams, all of different wavelengths. Entanglement of two light beams of different wavelengths has already ...


Physicists create first atomic-scale map of quantum dots

Physicists create first atomic-scale map of quantum dots

Nanotechnology / Nanophysics

created Sep 29, 2009 | popularity 4.7 / 5 (13) | comments 0

(PhysOrg.com) -- University of Michigan physicists have created the first atomic-scale maps of quantum dots, a major step toward the goal of producing "designer dots" that can be tailored for specific applications.


Researchers simplify fabrication of nano storage, chip-design tools

Researchers simplify fabrication of nano storage, chip-design tools

Nanotechnology / Nanophysics

created Sep 09, 2009 | popularity 4.7 / 5 (7) | comments 1

Advances by the Rice University lab of James Tour have brought graphite's potential as a mass data storage medium a step closer to reality and created the potential for reprogrammable gate arrays that could ...


Researchers develop thin films showing promise for solar applications

Nanotechnology / Nanomaterials

created Sep 08, 2009 | popularity 4.1 / 5 (8) | comments 1

Researchers at Ben-Gurion University of the Negev have developed thin films that exhibit carrier multiplication (CM). This development is of great interest for future solar cells.


Atoms don't dance the 'Bose Nova'

Atoms don't dance the 'Bose Nova'

Physics / General Physics

created Sep 03, 2009 | popularity 4.5 / 5 (11) | comments 0

(PhysOrg.com) -- Hanns-Christoph Naegerl's research group at the Institute for Experimental Physics, Austria, has investigated how ultracold quantum gases behave in lower spatial dimensions. They successfully ...