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Illustration of multiple exciton generation (MEG) with a singlet exciton (S1)...02.01.13Science Highlight

Double the Charge from One Photon in Organic Photovoltaics

First observation of key intermediate state in the conversion of one photon to two electrons. Read More »

Crystal structure of CoSb3(1-x)Ge1.5xTe1.5x02.01.13Science Highlight

Making the Right Substitution for Better Thermoelectrics

Exploiting the self-organizing nature of atoms to block heat transfer and improve thermal-to-electrical energy conversion. Read More »

An electrolyte molecule (ethylene carbonate: C3H4O3) weakly binds (dashed line) to the positive electrode surface (Li0.6Mn2O4)...02.01.13Science Highlight

Understanding Nature’s Choreography in Batteries

Charge-discharge chemistry for lithium ion batteries elucidated by theoretical calculations. Read More »

Recent experimental and theoretical studies of heat transport through a periodic stack of thin films known as a superlattice show that a portion of the thermal energy carriers maintain wave-like properties while traversing through the nanostructure.02.01.13Science Highlight

An Unexpected Heat Wave

Observation of wavelike heat conduction reveals new possibilities for tailoring thermal transport through wave effects. Read More »

Scanning electron microscopy of conductive carbon fibers coated with metal oxide nanowires...02.01.13Science Highlight

Nano-Composite Designs for Energy Storage

Nano-porous metal oxide coatings on carbon fiber dramatically enhance the electrical storage capacity for supercapacitors. Read More »

New conjugated polymers absorb the rainbow of sunlight.01.01.13Science Highlight

Absorbing More of the Rainbow with Polymer-Based Organic Photovoltaics

Using newly synthesized polymers results in enhanced light harvesting capabilities and an unprecedented generation of photocurrent. Read More »

High resolution inverted seismic images of CO2 migration at the Cranfield, Mississippi field injection site.01.01.13Science Highlight

Mapping Subsurface CO2 Migration

New computational technique creates high resolution maps of subsurface CO2 after geologic sequestration. Read More »

Electrochemical cell for splitting carbon dioxide into carbon monoxide and oxygen.12.01.12Science Highlight

Two for the Price of One: Water and Carbon Dioxide Splitting via a Single Catalyst

A simple, robust catalyst is capable of both water oxidation and carbon dioxide splitting, two difficult yet key reactions for solar energy conversion. Read More »

The composition of solvents, such as chloroform and toluene, during nanoparticle fabrication can alter the internal aggregate structure of polymer P3HT...11.01.12Science Highlight

Bridging the Nano-World and the Real World in Polymer Solar Cells

Discovering how polymer organization on the molecular level affects electric charge movement in organic solar cells. Read More »

Array of gallium nitride (GaN) nanowires fabricated by Sandia-developed top-down method.11.01.12Science Highlight

Fabricating Nanowire Lasers

Precise control of nanowire geometry and optical environment enables tuning of lasing properties. Read More »