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Scientists uncover a process that stands in the way of making quantum dots brighter Bright semiconductor nanocrystals known as quantum dots give QLED TV screens their vibrant colors. But attempts to increase the intensity of that light generate heat instead, reducing the dots’ light-producing efficiency. A new study explains why, and the results have broad implications for developing future quantum and photonics technologies where light replaces electrons in computers and fluids in refrigerators, for example. In a QLED TV screen, dots absorb blue light and turn it into green or red. At the ...

DOE Nanoscale Science Research Centers Support QIS Research to Advance Energy, Economic, and National Security DOE/US Department of Energy WASHINGTON, D.C. - The U.S. Department of Energy (DOE) today announced plans to provide $30 million for Quantum Information Science (QIS) research that helps scientists understand how nature works on an extremely small scale--100,000 times smaller than the diameter of a human hair. QIS can help our nation solve some of the most pressing and complex challenges of the 21st century, from climate change to national security. Watch this video to learn more abou...

Murugesan's research--destined for Energy Sciences Center--adds to PNNL's battery technology contributions DOE/Pacific Northwest National Laboratory Vijayakumar "Vijay" Murugesan stands next to the X-ray photoelectron spectroscopy imaging system, which is attached to a glovebox via an in situ sample transfer port. The instrument helps Murugesan and other researchers design battery parts then conduct tests in the imaging system. The setup will move to the new Energy Sciences Center later this year. (Photo by Andrea Starr | Pacific Northwest National Laboratory) When he was a 10th grade studen...

RTI data for 2015-2019 reveals poor acceptance rate for students from marginalised communities, with 25 of 26 departments not filling OBC, SC quotas either

Lead Halide Perovskite may Lead to More Efficient Solar Cells Written by AZoMJan 22 2021 Among the group of materials called perovskites, one of the most fascinating is a material that is capable of changing solar light to electricity as efficiently as present-day silicon solar cells available in the market. This material could also be produced much more easily and cost-effectively. Scientists at SLAC National Accelerator Laboratory and Stanford University discovered that squeezing a promising lead halide material in a diamond anvil cell (left) produces a so-called “black perovskite” (rig...