News tagged with nanocrystals
Self-assembling nanorods: Researchers obtain 1-, 2- and 3-D nanorod arrays and networks
(PhysOrg.com) -- A relatively fast, easy and inexpensive technique for inducing nanorods - rod-shaped semiconductor nanocrystals - to self-assemble into one-, two- and even three-dimensional macroscopic structures ...
Nanotechnology / Nanomaterials
Feb 01, 2012 |
5 / 5 (4) |
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Discovery of a 'dark state' could increase maximum theoretical efficiency of solar cells from 31 to 44 percent
The efficiency of conventional solar cells could be significantly increased, according to new research on the mechanisms of solar energy conversion led by chemist Xiaoyang Zhu at The University of Texas at Austin.
Dec 15, 2011 |
4.8 / 5 (23) |
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Nanocrystals go bare: Stripping material’s tiny tethers
(PhysOrg.com) -- Researchers with the DOE's Lawrence Berkeley National Laboratory have discovered a universal technique for stripping nanocrystals of tether-like molecules that until now have posed as obstacles ...
Nanotechnology / Nanomaterials
Dec 09, 2011 |
5 / 5 (3) |
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Faster colloidal fluorescence emitters: Nanoplatelets
(PhysOrg.com) -- Significant advances in the application of colloidal structures as light emitters and lasers may soon be realized following the discovery of very fast fluorescence emission rates in colloidal ...
Dec 09, 2011 |
5 / 5 (1) |
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On the road to plasmonics with silver polyhedral nanocrystals
The question of how many polyhedral nanocrystals of silver can be packed into millimeter-sized supercrystals may not be burning on many lips but the answer holds importance for one of today's hottest new high-tech ...
Nanotechnology / Nanomaterials
Nov 22, 2011 |
5 / 5 (3) |
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Novel nanocrystals with advanced optical properties developed for use as luminescent biomarkers
Upconversion emission materials are ideal for bioimaging due to its effectiveness as contrast agents for the detection of cancer cells, more so when the background emission of non-cancerous tissues can be minimised. These ...
Nanotechnology / Nanomaterials
Nov 14, 2011 |
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Taking a page from nature to build better nanomaterials
(PhysOrg.com) -- Sometimes nature cannot be improved upon. One example is in the synthesis of nanomaterials, which in the laboratory or factory generally requires toxic chemicals and extreme conditions of ...
Nanotechnology / Nanomaterials
Oct 27, 2011 |
4.8 / 5 (4) |
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Researchers discover technique to improve solar cell technology
A multi-disciplinary team of scientists at the Naval Research Laboratory has discovered a way to tailor nanostructures that could result in low-cost, high efficiency solar cells. The research appears in the ...
Oct 12, 2011 |
5 / 5 (2) |
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One-pot synthesis provides simpler, faster route to highly efficient solar cells
Preventing the recombination of free charges produced when light strikes a solar cell is one of the main goal of engineers attempting to extract the maximum energy conversion efficiency from their devices. One way to achieve ...
Nanotechnology / Nanomaterials
Aug 19, 2011 |
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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.
Nanotechnology / Bio & Medicine
Jul 18, 2011 |
5 / 5 (5) |
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Conducting energy on a nano scale
Modern electronics as we know them, from televisions to computers, depend on conducting materials that can control electronic properties. As technology shrinks down to pocket sized communications devices and microchips that ...
Nanotechnology / Nanomaterials
Jul 15, 2011 |
4 / 5 (4) |
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Researchers observe structural transformations in single nanocrystals
While a movie about giant robots that undergo structural transformations is breaking box office records this summer, a scientific study about structural transformations within single nanocrystals is breaking ...
Jul 08, 2011 |
4.6 / 5 (7) |
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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 ...
Jul 01, 2011 |
5 / 5 (15) |
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Citrate key in bone's nanostructure
Bone is one of nature's surprising "building materials." Pound-for-pound it's stronger than steel, tough yet resilient. Scientists at the U.S. Department of Energy's Ames Laboratory have identified the composition ...
Nanotechnology / Nanomaterials
Jun 08, 2011 |
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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 ...
Nanotechnology / Nanomaterials
Jun 02, 2011 |
4.8 / 5 (6) |
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