Researchers at Koç University, Turkey, have demonstrated nanomaterial-based white-light-emitting diodes (LEDs) that exhibit a record luminous efficiency of 105 lumens per watt. Luminous efficiency is a measure of how well a light source uses power to generate light. With further development, the new LEDs could reach efficiencies over 200 lumens per watt, making them a […]

In the lab of Fabrizio Carbone at Ecole Polytechnique Fédérale de Lausanne (EPFL) and their international colleagues, these physicists have now demonstrated experimentally the ability to coherently manipulate the wave function of a free electron down to the attosecond timescale. Attoseconds are 10 to the 18th of a second. The team also developed a theory […]

Sandia National Laboratory researchers have developed a tiny silicon-based device that can harness what was previously called waste heat and turn it into DC power. The rectenna, short for rectifying antenna, is made of common aluminum, silicon and silicon dioxide using standard processes from the integrated circuit industry. Converting electrical power to heat is easy. […]

Princeton Plasma Physics Laboratory has proven Germany’s Wendelstein 7-X (W7-X) fusion facility has set a world record for stellarators. Princeton Plasma Physics Laboratory (PPPL) finely tuned instrument strongly suggests that the record made by the design of the stellarator can be developed to capture on Earth the fusion that drives the sun and stars, creating […]

University of Surrey researchers believe their new technique has produced the highest performing inverted perovskite solar cell ever recorded. Perovskite based cells are widely expected to be the next generation of solar cells, offering similar power conversion efficiency (PCE) performance, but at a much lower cost than today’s dominant crystalline silicon based solar cells. In […]

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