Highlights of research in the time-resolved research group

Enhancing Solar Cells

October 7, 2014

Researchers from the University of Chicago and Argonne's Material Science Division are enhancing the power conversion efficiency of bulk hetero-junction solar cells by using the 8-ID-E beamline at the APS. The findings are published in Nature Photonics.

 

Supramolecular Nanocomposites

June 18, 2014

Researchers are advancing technology by creating supramolecular nanocomposites using the X-ray power of beamline 8-ID-E at the APS. The results are reported in Nature Communications.

 
Water-Like Properties of Soft Nanoparticle Suspensions

Water-Like Properties of Soft Nanoparticle Suspensions

November 25, 2013

Certain unusual properties of water have intrigued researchers for decades, but are hard to investigate owing to inherently small length scales and complex interactions. Now researchers using the Advanced Photon Source at Argonne have achieved the first experimental observation of the arrangements and mobility of soft nanoparticles in dense suspensions that mirror the anomalies observed in complex liquids like water in a colloidal suspension. This finding extends the toolbox of researchers interested in using suspensions to mimic molecular liquids.
Shedding Light on Chemistry with a Biological Twist

Shedding Light on Chemistry with a Biological Twist

March 14, 2013

Discovering how living things absorb and convert light energy into a form that can change the molecules involved in such processes would not only help scientists understand them, but could lead to ways to mimic such processes for more efficient solar energy conversion, for instance. A clearer understanding of how light can drive biological processes has emerged from x-ray diffraction studies carried out on beamlines at the U.S. Department of Energy Office of Science's Advanced Photon Source and the European Synchrotron Radiation Facility, helping shed a brighter light on some of life's most critical processes.
Dynamics of Polymer Chains Atop Different Materials

Dynamics of Polymer Chains Atop Different Materials

September 24, 2012

Technologies such as microelectronics and lithography require nanoscale polymer films that sit on other materials. An understanding of the interplay between the dynamics of thin film and underlying substrate is crucial in determining the appropriate materials to be utilized for new and improved applications. Experiments at the Argonne Advanced Photon Source provide important new insights about thin polymer films on various substrates.
Probing Ultrafast Solvation Dynamics with High Repetition-Rate Laser/X-ray Methodologies

Probing Ultrafast Solvation Dynamics with High Repetition-Rate Laser/X-ray Methodologies

February 11, 2012

Thanks to implementation of a high-repetition-rate, high-power laser system at the U.S. Department of Energy Office of Science's Advanced Photon Source at Argonne National Lsboratory, it has become possible to study light-induced intramolecular processes and solvent interactions in rapidly evolving molecular systems.
Peering into the Interfaces of Nanoscale Polymeric Materials

Peering into the Interfaces of Nanoscale Polymeric Materials

January 6, 2012

The development of polymer nanostructures and nanoscale devices for a wide variety of applications could emerge from new information about the interplay between nanoscale interfaces in polymeric materials, thanks to research carried out at the U.S. Department of Energy Office of Science’s Advanced Photon Source at Argonne National Laboratory.

Lightweight Solar Cells

September 12, 2014

Researchers from the University of Chicago, Northwestern University and Argonne are exploring optoelectronic and photovoltaic properties of copolymers to develop lightweight solar cells. Read more.

 
PbTiO<sub>3</sub>/SrTiO<sub>3</sub> Superlattice Components Respond Differently in an Electric Field

PbTiO3/SrTiO3 Superlattice Components Respond Differently in an Electric Field

February 17, 2014

Experiments at the U.S. Department of Energy Office of Science′s Advanced Photon Source studied the changes occurring in the domain pattern and atomic structure of a superlattice. These insights have the potential to extend the functionalities of complex oxides by providing the means to tune the field and time dependences of a material′s electronic properties, perhaps paving the way for their use in new, multifunctional microelectronic devices.
Watching a Protein as it Functions

Watching a Protein as it Functions

March 14, 2013

For decades, biochemists and biophysicists have worked to reveal the relationship between protein structural complexity and function, only to discover more complexity. They relied on freeze-trapping to capture protein intermediates at various steps along a biochemical pathway. Now a research group has developed the necessary infrastructure at the BioCARS beamline at the Argonne Advanced Photon Source to watch proteins function in real time on the picosecond time scale. Their work brings us many steps closer to knowing how proteins function, or malfunction when leading to disease.
Organic Polymers Show Sunny Potential

Organic Polymers Show Sunny Potential

June 25, 2013

A new version of solar cells created by laboratories at the Rice and Pennsylvania State universities, with an assist from two U.S. Department of Energy Office of Science x-ray light sources, could open the door to research on a new class of solar energy devices.
The Electronic Origin of Photoinduced Strain

The Electronic Origin of Photoinduced Strain

February 8, 2013

Research at the U.S. Department of Energy's Advanced Photon Source and Center for Nanoscale Materials that adds to our understanding of the way light interacts with multiferroics represents an important step toward the development of future electronic devices.
Unlocking the Nanoscale Secrets of Bird-Feather Colors

Unlocking the Nanoscale Secrets of Bird-Feather Colors

May 18, 2012

What makes bird feathers so colorful? Research at the U.S. Department of Energy Office of Science’s Advanced Photon Source reveals the complex three-dimensional nanostructures responsible for non-iridescent colors in bird feathers. These nanostructures could serve as a source of new photonic devices such as remote controls, optical data recorders, and much more.