Tag Archives: organic

Nuclear Spins Control Current in Plastic LED

Step toward Quantum Computing, Spintronic Memory, Better Displays

University of Utah physicists read the subatomic “spins” in the centers or nuclei of hydrogen isotopes, and used the data to control current that powered light in a cheap, plastic LED – at room temperature and without strong magnetic fields. (more…)

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UCLA researchers improve process for manufacturing highly efficient solar cells

New technique holds promise for commercial production of perovskite photovoltaics

Working on the cutting edge of a newly emerging area of solar-cell research, UCLA engineers have invented a new process for manufacturing highly efficient photovoltaic materials that shows promise for low-cost industrial production.

The new process uses so-called perovskite materials, which in the past few years have significantly advanced scientists’ efforts to create the next generation of solar cells. (more…)

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Updating Air Pollution Measurement Methods with UMass Amherst Air Quality, Health Effects Research

AMHERST, Mass. – Launching a natural research experiment in Kathmandu, Nepal, this month using advanced monitoring methods to assess health risk from air pollution, environmental health scientist Rick Peltier at the University of Massachusetts Amherst hopes to demonstrate for the first time in a real-world setting that air pollution can and should be regulated based on toxicology variables rather than simply on the volume of particles in the air.

Recent technological advances in air quality measurement methods now make it possible and practical to monitor air pollution in a much more sophisticated way than before, Peltier says. Researchers now use X-ray fluorescence spectrometry to measure air pollution metal content, ion chromatography to identify other chemicals and other tactics to assess organic and elemental carbon levels. (more…)

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Using IBM’s Crowdsourced Supercomputer, Harvard Rates Solar Energy Potential of 2.3 Million New Compounds

White House Applauds Citizen Science, Big Data Initiative

CAMBRIDGE, MA – 24 Jun 2013: The search for more versatile and less expensive materials for solar energy received a boost today as Harvard launched a free database that catalogues the suitability of 2.3 million organic, carbon compounds for converting sunlight into electricity.

Harvard’s Clean Energy project — which screened the molecules using World Community Grid, an IBM-managed virtual supercomputer that harnesses the surplus computer power donated by volunteers — is believed to be the most extensive investigation of quantum chemicals ever performed. (more…)

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IBM Scientists First to Distinguish Individual Molecular Bonds

Atomic force microscopy helps scientists to reveal the bond order and length of bonds within molecules

Technique can be used to study future devices made from graphene

Zurich, Switzerland – 14 Sep 2012: IBM scientists have been able to differentiate the chemical bonds in individual molecules for the first time using a technique known as noncontact atomic force microscopy (AFM).

The results push the exploration of using molecules and atoms at the smallest scale and could be important for studying graphene devices, which are currently being explored by both industry and academia for applications including high-bandwidth wireless communication and electronic displays. (more…)

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Employees at ‘Green’ Companies are Significantly more Productive, Study Finds

Bucking the idea that environmentalism hurts economic performance, a new UCLA-led study has found that companies that voluntarily adopt international “green” practices and standards have employees who are 16 percent more productive than the average.

Professor Magali Delmas, an environmental economist at UCLA’s Institute of the Environment and Sustainability and the UCLA Anderson School of Management, and Sanja Pekovic from France’s University Paris–Dauphine are the first to study how a firm’s environmental commitment affects its productivity.

Their findings are published online Sept. 10 in the Journal of Organizational Behavior. (more…)

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