Argonne National Laboratory

Science Highlights

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Chiral "Pinwheels" Self-Assembled from C60 and Pentacene

In a recent study from the Electronic & Magnetic Materials & Devices and Theory & Modeling groups,

April 1, 2013
Visualization of Gold Nanoparticle Self-Assembly via TEM

The self-assembly of gold nanoparticles (Au NPs) coated with specific organic ions in water was observed by Center for Nanoscale Materials staff using in situ transmission electron microscopy (TEM) equipped with a liquid cell.

March 1, 2013
Enhanced Light-Harvesting in Quantum Dot–Metal Organic Frameworks

CNM users from Northwestern University, working together with the Nanophotonics Group, report the functionalization of porphyrin-based metal-organic frameworks (MOFs) with CdSe/ZnS core/shell quantum dots (QDs) for the enhancement of light harvesting via energy transfer from the QDs to the MOFs.

February 1, 2013
Compositional Tuning of Structural Stability via Vacancy Filling Mechanism

Researchers in the Center for Nanoscale Materials' NanoBio Interfaces and Theory & Modeling groups, together with researchers from the University of Chicago, found an integrated experimental and computational approach that demonstrates a lithium-ion composition-dependent stability of vacancy-enriched cubic TiO2 anode subjected to high pressures in the GPa range.

January 1, 2013
Time-Resolved Measurements Show Colloidal Nanoplatelets Act Like Quantum Wells

The relaxation of high-energy carriers (electrons and holes) in colloidal nanoplatelets have been measured by researchers in the Nanophotonics Group at the Center for Nanoscale Materials, working with colleagues at the University of Chicago. The measurements show that the carriers behave like carriers in quantum wells.

December 3, 2012
Capping Ligands as Selectivity Switches in Hydrogenation Reactions

The role of surface modification of nanoparticle catalysts in alkyne hydrogenation reactions was systematically investigated by the Center for Nanoscale Materials' NanoBio Interfaces Group working with researchers in Argonne's Chemical Sciences & Engineering and X-Ray Science divisions. The team explains the effect of surface ligands on the selectivity and activity of platinum and Co/Pt nanoparticles using experimental and computational approaches.

November 1, 2012
Nanoscale Imaging of Strain using X-Ray Bragg Projection Ptychography

Users of the Center for Nanoscale Materials (CNM) from IBM exploited nanofocused X-ray Bragg projection ptychography to determine the lattice strain profile in an epitaxial SiGe stressor layer of a silicon prototype device. The theoretical and experimental framework of this new coherent diffraction strain imaging approach was developed by Argonne's Materials Science Division in collaboration with the CNM's X-Ray Microscopy Group to efficiently image strain fields with unperturbed boundary conditions in technologically and scientifically relevant energy systems.

October 29, 2012
The Red Armchair, December 16, 1931, by Pablo Picasso, 1881–1973
Gift of Mr. and Mrs. Daniel Saidenberg to the Art Institute of Chicago
© 2015 Estate of Pablo Picasso / Artists Rights Society (ARS), New York
"Picasso CSI"

A collaboration between the Art Institute of Chicago and Argonne National Laboratory, nicknamed "Picasso CSI," has produced an answer to a heated topic that has vexed the art world for decades: Pablo Picasso was the first artist to use common house paint in his work and spread that practice widely. It also has drawn the two distant worlds of cultural heritage experts and scientists together with the potential to rewrite art history.

October 29, 2012
Nanoscale Imaging of Strain using X-Ray Bragg Projection Ptychography

CNM users from IBM exploited nanofocused X-ray Bragg projection ptychography to determine the lattice strain profile in an epitaxial SiGe stressor layer of a silicon prototype device.

October 1, 2012
CNM Displays Strong Presence at Argonne's Energy Showcase

Argonne opened its gates to about 12,000 members of the community on Saturday, September 15, 2012. The Center for Nanoscale Materials was enthusiastically represented by nearly 25 staff volunteers during the Energy Showcase. The CNM exhibits covered solar energy, computational nanoscience, nanostructured carbons for nanoelectronics, visualization at the nanoscale, nanobio materials for energy applications, and general outreach in nanoscience and nanotechnology.

September 3, 2012