Navigation Links
Nanocrystal transformers
Date:7/8/2011

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 Berkeley National Laboratory (Berkeley Lab) have reported the first direct observation of structural transformations within a single nanocrystal of copper sulfide, a semiconductor expected to play an important role in future energy technologies.

Using TEAM 0.5, one of the world's most powerful transmission electron microscopes, a research group led by Berkeley Lab director Paul Alivisatos, observed structural fluctuations in a copper sulfide nanocrystal as it transitioned between the low- and high-chalcocite solid-state phases. These fluctuations are highly relevant to understanding such phenomena as how ion transport occurs within electrodes during the charging and discharging of batteries, or how the structures of a solid material might change at the interface between an electrode and an electrolyte.

"TEAM 0.5, with its advanced electron optics and recording systems, enables rapid sample imaging with single atom sensitivity across the periodic table and greater collection efficiency. This provides extraordinary opportunities to study structural transformation dynamics in situ with atomic resolution," Alivisatos says.

"In this study," he adds, "we observed structural transformation dynamics in a copper sulfide nanorod from a low- to a high-chalcocite structure with unprecedented detail, and found these dynamics to be strongly influenced by defects in the nanorod crystal. Our findings suggest strategies for suppressing or assisting such transformations that should aid in the future design of materials with new and controlled p
'/>"/>

Contact: Lynn Yarris
lcyarris@lbl.gov
510-486-5375
DOE/Lawrence Berkeley National Laboratory
Source:Eurekalert  

Page: 1 2 3 4

Related biology technology :

1. New imaging technique reveals the atomic structure of nanocrystals
2. Gold solution for enhancing nanocrystal electrical conductance
3. Strain on nanocrystals could yield colossal results
4. New nanocrystalline diamond probes overcome wear
5. Penn collaboration leads to simpler method for building varieties of nanocrystal superlattices
6. Breakthrough in nanocrystals growth
7. TU Delft identifies huge potential of nanocrystals in fuel cells
8. Nanocrystal doping developed by Hebrew University researchers enhances semiconductor nanocrystals
9. Berkeley Lab researchers report tandem catalysis in nanocrystal interfaces
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Nanocrystal transformers
(Date:9/30/2014)... and ROCKVILLE, Md., Sept. 30, 2014 ... partnership focusing on commercializing market-relevant biohealth innovations and increasing ... , announced today that venture capitalist, Tania ... a strategic advisor. Dr. Fernandez will be a member ... Fund, which will provide up to $50 million in ...
(Date:9/30/2014)... 30, 2014 Lyme Research Alliance ... Lyme disease research at universities, today announced the awarding ... the identification, treatment and cure for Lyme and other ... the most applications in its history—over 20 grant proposals—a ... we were pleased to receive so many solid applications ...
(Date:9/30/2014)... (PRWEB) September 30, 2014 Whitehouse ... been chosen by the Parenteral Drug Association (PDA) ... and 19, 2014) on container closure integrity testing. This ... integrity test methods and philosophies detailed in the recently ... Evaluation. The course will span container closure ...
(Date:9/29/2014)... the start of the military conflicts in Iraq and ... United States with traumatic brain injury caused by exposure ... improvised explosive devices, or IEDs. Symptoms of traumatic brain ... headaches and nausea, to more severe impairments in memory ... of Defense has recognized the critical importance and complexity ...
Breaking Biology Technology:Seasoned Life Sciences Venture Capitalist Tania Fernandez Joins BHI to Help Manage New BioHealth Gap Fund 2Lyme Research Alliance Awards Nearly $600,000 in New Grants 2Lyme Research Alliance Awards Nearly $600,000 in New Grants 3Lyme Research Alliance Awards Nearly $600,000 in New Grants 4Whitehouse Laboratories to Partner with PDA for Educational Course on Container Closure Integrity Testing 2Whitehouse Laboratories to Partner with PDA for Educational Course on Container Closure Integrity Testing 3Whitehouse Laboratories to Partner with PDA for Educational Course on Container Closure Integrity Testing 4Modeling shockwaves through the brain 2Modeling shockwaves through the brain 3Modeling shockwaves through the brain 4
... Oct. 10 /PRNewswire-FirstCall/ - Neptune Technologies &,Bioressources Inc. ... the fiscal 2009 first quarter ended August 31, ... ended August 31, 2008 was,$2,366,000 compared to $2,085,000 ... an increase of 13.5%., The Company substantially ...
... The race for the best "gecko foot" dry adhesive got ... practical material reported in the journal Science by a team ... been interested in the ability of gecko lizards to scurry ... The creatures owe this amazing ability to microscopic branched elastic ...
... to No. 2 in ranking; up six spots from last ... is earning recognition as a leader in biotechnology not just ... to work., Monsanto, headquartered in St. Louis, Missouri, took ... by Science, a leading,industry publication. The company moved up six ...
Cached Biology Technology:Neptune Technologies & Bioressources Inc. reports first quarter results 2Dry adhesive based on carbon nanotubes gets stronger, with directional gripping ability 2Dry adhesive based on carbon nanotubes gets stronger, with directional gripping ability 3Dry adhesive based on carbon nanotubes gets stronger, with directional gripping ability 4Monsanto Recognized as Top Biotechnology Employer by Science Magazine 2
(Date:9/29/2014)... research team says recently identified radiation detection properties of ... doors for homeland security and medical advances. , In ... issue of Optics Letters , UT Arlington Physics ... method to fabricate transparent nanoscintillators by heating nanoparticles composed ... is formed. A scintillator refers to a material ...
(Date:9/29/2014)... five-year, $6 million grant for clinical research and ... of safe and effective treatments for cocaine addiction. ... Institutes of Health, National Institute on Drug Abuse, ... for Cocaine Use Disorder to oversee preclinical and ... moving forward with more expensive large-scale clinical trials. ...
(Date:9/29/2014)... Colo., USA For decades, planetary geologists have ... Valles Marineris, the 2000-mile-long chasm that constitutes the ... have identified features that might have been carved ... canyons; however, these observations have remained highly controversial ... from Bryn Mawr College and the Freie Universitaet ...
Breaking Biology News(10 mins):UT Arlington researchers develop new transparent nanoscintillators for radiation detection 2UT Arlington researchers develop new transparent nanoscintillators for radiation detection 3New VCU center to target cocaine addiction 2Glaciers in the Grand Canyon of Mars? 2Glaciers in the Grand Canyon of Mars? 3Glaciers in the Grand Canyon of Mars? 4Glaciers in the Grand Canyon of Mars? 5Glaciers in the Grand Canyon of Mars? 6Glaciers in the Grand Canyon of Mars? 7Glaciers in the Grand Canyon of Mars? 8Glaciers in the Grand Canyon of Mars? 9
... Inc., a San Antonio-based early stage medical device company ... San Antonio (UTSA), was honored at the Texas Life ... Life Science Companies recognized for having the best business ... technology, biotech and pharma companies competed in the event ...
... acetic acid, can effectively kill mycobacteria, even highly ... of researchers from Venezuela, France, and the US ... journal of the American Society for Microbiology. ... and non-toxic disinfectant against drug-resistant tuberculosis (TB) bacteria ...
... Eating a vegetarian diet appears to be associated with lower ... to reduce blood pressure. Factors such as diet, body ... the risk of developing hypertension. Dietary modifications have been shown ... authors analyzed seven clinical trials and 32 studies published from ...
Cached Biology News:Leto Solutions honored as 1 of top 10 best companies at 2014 Texas Life Science Forum 2Leto Solutions honored as 1 of top 10 best companies at 2014 Texas Life Science Forum 3Vinegar kills tuberculosis and other mycobacteria 2Vinegar kills tuberculosis and other mycobacteria 3
... Source: Crotalus adamanteus venom Description: ... widely used in studying nucleic ... . It hydrolyzes 5'-mononucleotides from ... . Phosphodiesterase I cleaves ADP-ribosylated ...
... Life Science Rotarods are used to assess the ... fatigue resistance on mice and rats using one ... user friendly; the animals are placed on textured ... onto the individual sensing platforms below, its test ...
... I Amplification Grade digests ... to oligodeoxyribonucleotides. The specific ... DNAse I Amplification Grade ... tested for absence of ...
... Qualified is a special preparation of bovine pancreatic ... stranded cleavage of DNA molecules. In the presence ... makes double strand breaks at random sites in ... can be controlled by the enzyme concentration and ...
Biology Products: