Latest Paul Alivisatos Stories

2013-04-09 11:34:01

Cuts in federal funding of nanotechnology research threaten to slow progress toward some of the field's greatest promises, including commercialization of sustainable new energy sources that do not contribute to global warming, an international authority in the field cautioned here today. Speaking at the 245th National Meeting & Exposition of the American Chemical Society, the world's largest scientific society, A. Paul Alivisatos, Ph.D., expressed concern that the cuts come when...

Bright Lights Of Purity
2012-01-31 04:43:01

Berkeley Lab Researchers Discover Why Pure Quantum Dots and Nanorods Shine Brighter To the lengthy list of serendipitous discoveries — gravity, penicillin, the New World — add this: Scientists with the U.S. Department of Energy (DOE)´s Lawrence Berkeley National Laboratory (Berkeley Lab) have discovered why a promising technique for making quantum dots and nanorods has so far been a disappointment. Better still, they´ve also discovered how to correct the problem. A...

2011-07-12 12:28:02

Berkeley Lab 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 new ground for the design of novel materials that will serve next-generation energy storage batteries and solar energy harvesting devices. Researchers at the U.S. Department of Energy (DOE)'s Lawrence...

2011-07-04 12:22:28

Berkeley Lab 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 Berkeley National Laboratory (Berkeley Lab) created artificial molecules of semiconductor nanocrystals and watched them break a fundamental principle of photoluminescence known as "Kasha's rule." Named for chemist...

2011-06-16 21:34:36

Berkeley Lab plasmon rulers may offer unprecedented view of critical biological events The world's first three-dimensional plasmon rulers, capable of measuring nanometer-scale spatial changes in macrmolecular systems, have been developed by researchers with the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab), in collaboration with researchers at the University of Stuttgart, Germany. These 3D plasmon rulers could provide scientists with unprecedented...

2010-03-20 13:19:20

Composites are combinations of materials that produce properties inaccessible in any one material. A classic example of a composite is fiberglass "“ plastic fibers woven with glass to add strength to hockey sticks or the hull of a boat. Unlike the well-established techniques for producing fiberglass and other macroscale composites, however, there aren't general schemes available for making nanoscale composites. Now,  researchers at Berkeley Lab's Molecular Foundry, in collaboration...

2009-09-10 09:35:08

In a development that holds much promise for the future of solar cells made from nanocrystals, and the use of solar energy to produce clean and renewable liquid transportation fuels, researchers with the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have reported a technique by which the electrical conductivity of nanorod crystals of the semiconductor cadmium-selenide was increased 100,000 times. "The key to our success is the fabrication of gold electrical...

2009-08-10 16:21:00

U.S. scientists report the first real-time, direct observation of single nanocrystal growth in solution revealed much of what we thought we knew is wrong. The researchers, led by Berkeley National Laboratory Director Paul Alivisatos and Ulrich Dahmen, director of the lab's National Center for Electron Microscopy, said their study showed that while some crystals in solution grow steadily in size via classical nucleation and aggregation, others grow via coalescence events, in which small...

2009-02-18 15:08:27

Availability of solar cell materials could limit large-scale deployment of photovoltaics Unconventional solar cell materials that are as abundant but much less costly than silicon and other semiconductors in use today could substantially reduce the cost of solar photovoltaics, according to a new study from the Energy and Resources Group and the Department of Chemistry at the University of California, Berkeley, and the Lawrence Berkeley National Laboratory (LBNL). These materials, some of...

Word of the Day
  • Remarkable; prodigious.
  • Audacious; gutsy.
  • Completely; extremely.
  • Audaciously; boldly.
  • Impressively great in size; enormous; extraordinary.
This word is probably from the dialectal 'boldacious,' a blend of 'bold' and 'audacious.'