Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Doty receives NSF award for work on quantum dot molecules

UD's Matthew Doty has won a prestigious NSF Career Award for his work in quantum dot molecules.
UD's Matthew Doty has won a prestigious NSF Career Award for his work in quantum dot molecules.

Abstract:
Matthew Doty, assistant professor in the Department of Materials Science and Engineering at the University of Delaware, has received a National Science Foundation Faculty Early Career Development Award for his work on quantum dot molecules.

Doty receives NSF award for work on quantum dot molecules

Newark, DE | Posted on February 20th, 2009

The highly competitive NSF Career Award is bestowed on researchers deemed most likely to become the academic leaders of the 21st century.

The five-year $525,000 award will support not only Doty's research but also hands-on research and curriculum development for K-12 teachers, hands-on exploratory science experiences for K-12 students, and the development of interdisciplinary courses on nanoscale materials for advanced undergraduate students.

Doty explains that quantum dots (QDs) are often referred to as "artificial atoms" because, like natural atoms, they have bound, discrete electronic states. Recent advances in materials science and nanofabrication techniques have made it possible to controllably couple individual QDs to create artificial molecules.

In contrast to natural molecules, however, where the degree of coupling is determined by the electro-negativity of each atom and the spacing between the atoms, in QD molecules (QDMs), the coupling can be engineered.

"This control over quantum mechanical coupling at the level of single electrons and holes opens the door for design of novel materials with revolutionary properties," Doty says.

The applications for this technology include optoelectronic devices such as lasers and sensors, quantum information processing and functional materials.

"For QDMs to be of use in future technologies," Doty says, "we have to understand the signatures and mechanisms of quantum mechanical coupling. This will require identifying their unique properties at the single molecule level while also figuring out how to scale the process up to increase the size of QDM assemblies."

"Progress towards any of these possible applications requires answers to many fundamental questions about the coupling between quantum dots," he adds. "What are the physical mechanisms of coupling? Do particles tunnel between dots or transfer via resonant energy transfer? How do the mechanisms of coupling depend on the material composition of the dots, their spatial separation, their energy levels, or the scaffold that connects the dots? What are the dynamics of interactions between electrons? How can we tune the degree of coupling in situ to create active materials?"

He hopes that his research over the next five years will yield answers to some of those questions.

As a part of the NSF Career program, Doty will host two high school teachers in his lab each summer, in an expansion of UD's ongoing Research Experiences for Teachers (RET) Nature InSpired Engineering (NISE) Program.

He also intends to create a portable experiment demonstrating the application of spectroscopy to materials characterization that teachers can borrow for use in their classrooms.

"In the long term," Doty says, "I'd like to build a library of these types of modules to serve as a resource for middle- and high-school teachers."

Doty joined the UD faculty in 2007 after a three-year stint as a National Research Council research associate at the Naval Research Laboratory. He earned his Ph.D. in physics at the University of California Santa Barbara.

"All of my degrees are in physics, and at the Navy Lab, I worked mostly with physicists and chemists," he says. "The work there was much more basic than most engineering research. But the materials science department here at UD has turned out to be a really good fit for me. If I had joined a physics department, I wouldn't be right down the hall from people doing research on topics like recombinant DNA, organic solar cells, and self-assembly of biological materials. There's a real melding of expertise here that offers a great opportunity to look at problems from many different angles and come up with creative solutions. That's been really exciting for me."

Although the prestigious NSF Career Awards are granted to help young investigators launch their independent research careers, Doty anticipates collaborating with colleagues both here at UD and at other institutions to explore various applications of his work. "You can't do science today by yourself," he says.

Article by Diane Kukich
Photo by Kathy Atkinson

####

For more information, please click here

Contacts:
Office of Communications & Marketing
The Academy Building
105 East Main Street
University of Delaware
Newark, DE 19716 Ľ USA
Phone: (302) 831-2792

Copyright © University of Delaware

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

A new product to help combat mouldy walls, thanks to technology developed at the ICN2 December 14th, 2017

Sandia researchers make solid ground toward better lithium-ion battery interfaces: Reducing the traffic jam in batteries December 13th, 2017

Perking up and crimping the 'bristles' of polyelectrolyte brushes December 13th, 2017

Columbia engineers create artificial graphene in a nanofabricated semiconductor structure: Researchers are the first to observe the electronic structure of graphene in an engineered semiconductor; finding could lead to progress in advanced optoelectronics and data processing December 13th, 2017

Govt.-Legislation/Regulation/Funding/Policy

Sandia researchers make solid ground toward better lithium-ion battery interfaces: Reducing the traffic jam in batteries December 13th, 2017

Perking up and crimping the 'bristles' of polyelectrolyte brushes December 13th, 2017

Columbia engineers create artificial graphene in a nanofabricated semiconductor structure: Researchers are the first to observe the electronic structure of graphene in an engineered semiconductor; finding could lead to progress in advanced optoelectronics and data processing December 13th, 2017

Wheat gets boost from purified nanotubes: Rice University toxicity study shows plant growth enhanced by -- but only by -- purified nanotubes December 6th, 2017

Academic/Education

Luleň University of Technology is using the Deben CT5000TEC stage to perform x-ray microtomography experiments with the ZEISS Xradia 510 Versa to understand deformation and strain inside inhomogeneous materials November 7th, 2017

Park Systems Announces the Grand Opening of the Park NanoScience Center at SUNY Polytechnic Institute November 3rd, 2017

Two Scientists Receive Grants to Develop New Materials: Chad Mirkin and Monica Olvera de la Cruz recognized by Sherman Fairchild Foundation August 16th, 2017

Moving at the Speed of Light: University of Arizona selected for high-impact, industrial demonstration of new integrated photonic cryogenic datalink for focal plane arrays: Program is major milestone for AIM Photonics August 10th, 2017

Announcements

A new product to help combat mouldy walls, thanks to technology developed at the ICN2 December 14th, 2017

Sandia researchers make solid ground toward better lithium-ion battery interfaces: Reducing the traffic jam in batteries December 13th, 2017

Perking up and crimping the 'bristles' of polyelectrolyte brushes December 13th, 2017

Columbia engineers create artificial graphene in a nanofabricated semiconductor structure: Researchers are the first to observe the electronic structure of graphene in an engineered semiconductor; finding could lead to progress in advanced optoelectronics and data processing December 13th, 2017

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

Columbia engineers create artificial graphene in a nanofabricated semiconductor structure: Researchers are the first to observe the electronic structure of graphene in an engineered semiconductor; finding could lead to progress in advanced optoelectronics and data processing December 13th, 2017

Wheat gets boost from purified nanotubes: Rice University toxicity study shows plant growth enhanced by -- but only by -- purified nanotubes December 6th, 2017

Researchers advance technique to detect ovarian cancer: Rice, MD Anderson use fluorescent carbon nanotube probes to achieve first in vivo success November 30th, 2017

Fast flowing heat in graphene heterostructures: Surprisingly fast heat flow from graphene to its surrounding November 29th, 2017

Quantum Dots/Rods

Quantum communications bend to our needs: By changing the wavelengths of entangled photons to those used in telecommunications, researchers see quantum technology take a major leap forward September 28th, 2017

Band Gaps, Made to Order: Engineers create atomically thin superlattice materials with precision September 26th, 2017

New approach on research and design for CQD catalysts in World Scientific NANO August 2nd, 2017

Coupling a nano-trumpet with a quantum dot enables precise position determination July 14th, 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