Science Highlights

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New Measurement of the Size of the Proton

A recent measurement at JLab of the elastic scattering of electrons on the proton provides a new, high-precision value for the charge radius of the proton.

November 1, 2011
Diagrammatic hypothesis of the refined BHJ model for PTB7/fullerene solar cells.
Rethinking the idealized morphology in high-performance organic photovoltaics

Traditionally, organic photovoltaic (OPV) active layers are viewed as an interpenetrating network of pure polymers and fullerenes with discrete interfaces.

December 9, 2011
Simulation of velocity distribution in a 19-pin wire-wrapped fuel bundle, computed using Nek5000 on Argonne Leadership Computing Facility's Intrepid. Image by Paul Fischer.
Meeting highlights applications of Nek5000 simulation code

Thirty researchers from around the world gathered for the first Nek5000 meeting, held at Argonne on December 9 and 10, 2010. The objective was to enable developers and users of Nek5000 to exchange information, address technical issues and share experiences in areas of common interest.

December 12, 2011
The assemblies, just half a millimeter wide, are composed of microparticles. Confined between two liquids, they assemble themselves into star shapes when an alternating magnetic field is applied.
Smart Colloids Perform Simple Robotic Functions

An innovative approach for the directed formation and manipulation of colloidal assemblies that perform elaborate mechanical functions such as grasping, transporting and releasing cargo has been developed by scientists at Argonne.

January 13, 2012
A New Discovery Answers an Old Question

The transition-metal monoxide FeO is an archetypal example of a Mott insulator—a material that should conduct electricity under conventional band theories but becomes an insulator when measured, es

February 20, 2012
Visualization of a molecule. Image: Mark J. Winter/Science Photo Library
Rapid procedure for the exploration of chemical compound space

By combining quantum chemistry with artificial intelligence (machine learning), researchers at the Institute for Pure and Applied Mathematics at UCLA achieved a scientific breakthrough expected to

February 27, 2012
New Process for Synthesizing Robust Catalysts

The two main routes for the deactivation of catalysts consisting of metal nanoparticles are coking (the accumulation of carbon on the metal that blocks the catalytic sites) and sintering (the formation of larger metal particles that lowers the activity).

March 9, 2012
Scientists at Argonne's Advanced Photon Source investigated nanoscale confinement on the local viscosity of entangled polystyrene films at high temperatures.
Peering into the interfaces of nanoscale polymeric materials

The development of polymer nanostructures and nano-devices for a wide variety of applications could emerge from new information about the interplay between nanoscale interfaces in polymeric materials.

March 12, 2012
An image of coupled magnetic discs, courtesy of Kyoto University, Japan.
Unconventional topological spin structure in coupled magnetic discs

Argonne's Materials Science Division researchers have fabricated an artificially-confined system of magnetic discs coupled antiferromagnetically through a spacer layer, and demonstrated for the first time that this system forms an unconventional topological spin structure.

March 12, 2012
A 3-D map of nanopyramids in materials for LED lights. Credit: Nestor Zaluzec, Robert Colby and Eric Stach.
Shedding new light on LEDs

LEDs, or light-emitting diodes, are the secret behind your iPhone screen, flatscreen TVs, Christmas lights and crosswalk signals. They can last longer and save more energy than traditional incandescent bulbs. But there is one thing they aren’t very good at: efficiently emitting light in the yellow-green spectrum.

April 18, 2012