Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > High-Efficiency Solid-State Lighting and Superconductor Research Receives Funding: Energy sciences flourish under DOE grant award

Abstract:
Lower-cost, higher-efficiency lighting and better superconducting materials could result from a pair of grants awarded to Los Alamos National Laboratory researchers.

High-Efficiency Solid-State Lighting and Superconductor Research Receives Funding: Energy sciences flourish under DOE grant award

LOS ALAMOS, NM | Posted on August 26th, 2009

The U.S. Department of Energy's Office of Science, Basic Energy Sciences, recently announced its commitment to fund two Single Investigator and Small Group Research projects at Los Alamos. Each project will be funded for up to three years.

The first project, led by Jennifer Hollingsworth and Han Htoon, will focus on "Giant Nanocrystal Quantum Dots: Controlling Charge Recombination Processes for High-Efficiency Solid-State Lighting." This scientific effort exploits novel nanomaterials—particles hundreds of times smaller than a grain of sand—that have the potential to convert electrical energy to light with 100 percent efficiency.

Although researchers have used nanocrystal quantum dots for light-emitting diodes (LEDs) in other efforts, the materials have serious drawbacks, such as blinking or flickering due to complex physical properties inherent to the materials. Due to the inherent flaws of conventional nanocrystal quantum dots, LEDs made from them have been limited to external quantum efficiencies (EQEs) of only about 2 percent.

Hollingsworth and Htoon have found a way to cover giant nanocrystal quantum dots with a shell of inorganic material that mitigates the inherent flaws of conventional nanocrystal quantum dots. Further development of the technology could result in significantly improved LED lighting systems that are highly efficient, reliable, and cost effective.

The other project, "Towards a Universal Description of Vortex Matter in Superconductors," focuses on understanding vortex physics in superconducting materials. This understanding could enhance the current-carrying capacity of superconductors, which are materials with the ability to conduct electrical current without resistance, generally at extremely cold temperatures.

Principal researcher Leonardo Civale is examining how nanosized imhomogeneities—tiny deviations from uniformity—in the lattice structure of superconducting materials can behave as "pinning centers," trapping current vortices and precluding motions that would dissipate energy and reduce the current-carrying capacity of the superconducting material. By exploring these phenomena in different materials across a broad spectrum of properties, Civale and colleagues expect to develop a unified picture of vortex matter that is valid for all superconductors.

"Both of these Los Alamos National Laboratory research projects illustrate how the Laboratory is using cutting-edge science to address problems of significant importance to the nation," said Terry Wallace, principal associate director for Science, Technology, and Engineering at Los Alamos.

####

About Los Alamos National Laboratory
Los Alamos National Laboratory, a multidisciplinary research institution engaged in strategic science on behalf of national security, is operated by Los Alamos National Security, LLC, a team composed of Bechtel National, the University of California, The Babcock & Wilcox Company, and the Washington Division of URS for the Department of Energy’s National Nuclear Security Administration.

Los Alamos enhances national security by ensuring the safety and reliability of the U.S. nuclear stockpile, developing technologies to reduce threats from weapons of mass destruction, and solving problems related to energy, environment, infrastructure, health, and global security concerns.

For more information, please click here

Contacts:
JAMES E. RICKMAN
505-665-9203

Copyright © Los Alamos National Laboratory

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Ultracold atom waves may shed light on rogue ocean killers: Rice quantum experiments probe underlying physics of rogue ocean waves April 27th, 2017

Looking for the quantum frontier: Beyond classical computing without fault-tolerance? April 27th, 2017

Metal nanoparticles induced visible-light photocatalysis: Mechanisms, applications, ways of promoting catalytic activity and outlook April 27th, 2017

Arrowhead Pharmaceuticals to Webcast Fiscal 2017 Second Quarter Results April 27th, 2017

Affordable STM32 Cloud-Connectable Kit from STMicroelectronics Puts More Features On-Board for Fast and Flexible IoT-Device Development April 26th, 2017

Laboratories

Video captures bubble-blowing battery in action: Researchers propose how bubbles form, could lead to smaller lithium-air batteries April 26th, 2017

NIST physicists show ion pairs perform enhanced 'spooky action' March 30th, 2017

A big leap toward tinier lines: Self-assembly technique could lead to long-awaited, simple method for making smaller microchip patterns March 27th, 2017

Cryo-electron microscopy achieves unprecedented resolution using new computational methods March 25th, 2017

Display technology/LEDs/SS Lighting/OLEDs

New ultrafast flexible and transparent memory devices could herald new era of electronics April 1st, 2017

Govt.-Legislation/Regulation/Funding/Policy

Ultracold atom waves may shed light on rogue ocean killers: Rice quantum experiments probe underlying physics of rogue ocean waves April 27th, 2017

Metal nanoparticles induced visible-light photocatalysis: Mechanisms, applications, ways of promoting catalytic activity and outlook April 27th, 2017

Graphene holds up under high pressure: Used in filtration membranes, ultrathin material could help make desalination more productive April 24th, 2017

Nanoparticle vaccine shows potential as immunotherapy to fight multiple cancer types April 24th, 2017

Chip Technology

Geoffrey Beach: Drawn to explore magnetism: Materials researcher is working on the magnetic memory of the future April 25th, 2017

'Neuron-reading' nanowires could accelerate development of drugs for neurological diseases April 12th, 2017

Nanometrics to Announce First Quarter Financial Results on May 2, 2017 April 11th, 2017

AIM Photonics Presents Cutting-Edge Integrated Photonics Technology Developments to Packed House at OFC 2017, the Optical Networking and Communication Conference & Exhibition April 11th, 2017

Announcements

Ultracold atom waves may shed light on rogue ocean killers: Rice quantum experiments probe underlying physics of rogue ocean waves April 27th, 2017

Looking for the quantum frontier: Beyond classical computing without fault-tolerance? April 27th, 2017

Metal nanoparticles induced visible-light photocatalysis: Mechanisms, applications, ways of promoting catalytic activity and outlook April 27th, 2017

Arrowhead Pharmaceuticals to Webcast Fiscal 2017 Second Quarter Results April 27th, 2017

Energy

Using light to propel water : With new method, MIT engineers can control and separate fluids on a surface using only visible light April 25th, 2017

SUNY Polytechnic Institute Announces Total of 172 Teams Selected to Compete in Solar in Your Community Challenge: Teams from 40 states, plus Washington, DC, 2 Territories, and 4 American Indian Reservations, Will Deploy Solar in Underserved Communities April 20th, 2017

Better living through pressure: Functional nanomaterials made easy April 19th, 2017

Shedding light on the absorption of light by titanium dioxide April 14th, 2017

Grants/Sponsored Research/Awards/Scholarships/Gifts/Contests/Honors/Records

Ultracold atom waves may shed light on rogue ocean killers: Rice quantum experiments probe underlying physics of rogue ocean waves April 27th, 2017

Video captures bubble-blowing battery in action: Researchers propose how bubbles form, could lead to smaller lithium-air batteries April 26th, 2017

Nanoparticle vaccine shows potential as immunotherapy to fight multiple cancer types April 24th, 2017

SUNY Polytechnic Institute Announces Total of 172 Teams Selected to Compete in Solar in Your Community Challenge: Teams from 40 states, plus Washington, DC, 2 Territories, and 4 American Indian Reservations, Will Deploy Solar in Underserved Communities April 20th, 2017

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project