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Measuring absorption maps and spectra of plasmonic resonators with nanoscale resolution

Scientists have for the first time used photothermal induced resonance (PTIR) to characterize individual plasmonic nanomaterials in order to obtain absorption maps and spectra with nanometer-scale resolution. Nanostructuring of plasmonic materials enables engineering of their resonant optical response and creates new opportunities for applications that benefit from enhanced light-matter interactions, including sensing, photovoltaics, photocatalysis, and therapeutics.

Posted: Sep 10th, 2014

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Researchers achieve highest resolution ever with X-ray microscopy

A record-setting X-ray microscopy experiment may have ushered in a new era for nanoscale imaging. A collaboration of researchers used low energy or 'soft' X-rays to image structures only five nanometers in size. This resolution is the highest ever achieved with X-ray microscopy.

Posted: Sep 10th, 2014

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NSF grant supports high-yield synthesis of nanorods

Ounce for ounce, gold nanorods that are commercially available cost about 7,000 times more than bulk gold, but that may change, thanks to an award-winning research program in the laboratory of Rice University chemist Eugene Zubarev.

Posted: Sep 10th, 2014

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Molecular self-assembly controls graphene-edge configuration

Scientists have discovered a new bottom-up fabrication method that produces defect-free graphene nanoribbons (GNRs) with periodic zigzag-edge regions. This method, which controls GNR growth direction and length distribution, is a stepping stone towards future graphene-device fabrication by self-assembly.

Posted: Sep 10th, 2014

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Electroluminescence from a single polymer chain

Researchers have succeeded in detection and spectral characterization of electroluminescence (EL) emission from single polyfluorene chains. This first report on detection of EL from one chain of a conjugated polymer was made possible by isolating individual polyfluorene chains in vertical cylinders of a phase-separated block copolymer.

Posted: Sep 10th, 2014

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