Physicists in China, led by Yadong Wang at Hebei North University, found that higher-than-expected efficiency can be reached through interactions between triplet excitons, and impurities embedded in the LED polymer. Molecular dynamics simulations have shown that the mysteriously high efficiency of polymer LEDs arises from interactions between triplet excitons in their polymer chains, and unpaired […]

Duke University materials scientists have uncovered an atomic mechanism that makes certain thermoelectric materials such as iron sulfide incredibly efficient near high-temperature phase transitions. The information will help fill critical knowledge gaps in the computational modeling of such materials, potentially allowing researchers to discover new and better options for technologies that rely on transforming heat […]

Open Image…Save ImageOpen Image (using #TmpD/ia)… Argonne National Lab scientists have made a pivotal discovery that could extend the lifetime of fuel cells that power electric vehicles by eliminating the dissolution of platinum catalysts. Vehicles powered by polymer electrolyte membrane fuel cells (PEMFCs) are energy-efficient and eco-friendly, but despite increasing public interest in PEMFC-powered transportation, current performance of materials that […]

Open Image…Save ImageOpen Image (using #TmpD/ia)… A team from Imperial College London and the Indian Institute of Technology (IIT) Guwahati have found a new way to boost the amount of light LEDs produce and increase their lifetime. Its done by adding layer of nanoparticles to LED designs. They report their innovation in the journal Light Science & Applications. Making light-emitting […]

Texas A&M University researchers have designed a smart technology that can help utility companies better serve communities affected by power outages. The researchers said their single device works by improving energy delivery between home solar-power systems and the electrical grid. Dr. Le Xie, professor in the Department of Electrical and Computer Engineering said, “Our innovation […]

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