News tagged with quantum dots
Quantum dot LEDs get brighter, more efficient
(Phys.org) -- While quantum dot-based light-emitting diodes (QLEDs) are not made of organic materials, they share many of the same advantages as organic LEDs (OLEDs). For instance, both QLEDs and OLEDs outshine ...
Nanotechnology / Nanomaterials
Apr 20, 2012 |
4.8 / 5 (14) |
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Researchers prepare cheap quantum dot solar paint
(PhysOrg.com) -- It typically takes a day or two to prepare quantum dot solar cells in the conventional multifilm architecture. Now a team of researchers is reducing the preparation time of quantum dot solar ...
Dec 16, 2011 |
4.6 / 5 (23) |
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Could silicon be ideal in quantum computing?
(PhysOrg.com) -- "Quantum computing could provide a way to significantly speed up the way we process certain algorithms," Malcolm Carroll tells PhysOrg.com. "The primary issue, though, is that you need a well controlled two-le ...
Sep 16, 2011 |
5 / 5 (9) |
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Tiny tech, big results: Quantum dot solar cells increase solar conversion efficiency
The race to achieve ever-higher photovoltaic conversion ratios is, so to speak, a hot area of research. One line of research has focused on quantum dots – semiconductor nanocrystals under 2-10 nanome ...
Nanotechnology / Nanomaterials
Aug 02, 2011 |
4.8 / 5 (12) |
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Graphene quantum dots could lead to low-cost solar cells and OLEDs
(PhysOrg.com) -- Fabricating photovoltaic devices – those that convert sunlight into electricity – out of organic materials has several advantages over using non-organic materials, such as flexibility ...
Nanotechnology / Nanomaterials
Jul 05, 2011 |
4.2 / 5 (10) |
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Vertical cavity quantum switch could lead us away from electronics-based computing
(PhysOrg.com) -- Right now, many researchers around the world are working on ways to move away from electronics-dominated computing systems. There are a number of ideas about how this can be accomplished. "We are trying to ...
Jun 30, 2011 |
4.4 / 5 (27) |
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Quantum dots with built-in charge boost solar cell efficiency by 50%
(PhysOrg.com) -- For the past few years, researchers have been using quantum dots to increase the light absorption and overall efficiency of solar cells. Now, researchers have taken a step further, demonstrating ...
May 13, 2011 |
4.9 / 5 (21) |
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Could light and matter coupling lead to quantum computation?
(PhysOrg.com) -- In science, one of the issues of great interest is that of quantum computing, and creating a way to make it possible on a scalable level. This could be achieved by taking advantage of the strong interaction ...
Oct 11, 2010 |
4.7 / 5 (20) |
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Encouraging quantum dots to emit photons
(PhysOrg.com) -- One of the fields of great interest to scientists and researchers is that of using the quantum world to enhance various aspects of our lives. Advances in quantum cryptography make headlines, and scientists ...
Aug 05, 2010 |
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New evidence for quantum Darwinism found in quantum dots
(PhysOrg.com) -- Physicists have found new evidence that supports the theory of quantum Darwinism, the idea that the transition from the quantum to the classical world occurs due to a quantum form of natural ...
May 10, 2010 |
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Researchers Design Triple Quantum Dot for Quantum Information Applications
(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 ...
Nov 30, 2009 |
4.7 / 5 (18) |
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Using superconducting probes to get a picture of what it's like inside CNTs
(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. ...
Nov 20, 2009 |
4.3 / 5 (10) |
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Physicists Demonstrate Three-Color Entanglement
(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 ...
Oct 07, 2009 |
4.3 / 5 (25) |
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Physicists Detect Single-Electron Tunneling with Quantum Dots
(PhysOrg.com) -- Detecting the coherent motion of a single electron is a challenge, for the simple reason of scale: the timescale of the coherent motion of a single-electron wave function is in the picosecond ...
May 06, 2009 |
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'Squeezing' light into quantum dots
(PhysOrg.com) -- “Quantum wells have been instrumental in telecommunications, enabling light amplification,” Patanjali Kambhampati tells PhysOrg.com, “but theory has suggested that a very small - colloidal - quantum dot co ...
Apr 01, 2009 |
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Quantum dot
A quantum dot is a semiconductor whose excitons are confined in all three spatial dimensions. As a result, they have properties that are between those of bulk semiconductors and those of discrete molecules. They were discovered by Louis E. Brus, who was then at Bell Labs. The term "Quantum Dot" was coined by Mark Reed.
Researchers have studied quantum dots in transistors, solar cells, LEDs, and diode lasers. They have also investigated quantum dots as agents for medical imaging and hope to use them as qubits.
For more information about Quantum dot, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
