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Quantum dots enhance light-to-current conversion in layered semiconductors

DOE/Brookhaven National Laboratory
Peer-Reviewed Publication

Scientists combined the excellent light-harvesting properties of quantum dots with the tunable electrical conductivity of a layered tin disulfide semiconductor to produce a hybrid material that exhibited enhanced light-harvesting and energy transfer properties. The research paves the way for using these materials in optoelectronic applications such as energy-harvesting photovoltaics, light sensors, and light emitting diodes (LEDs).

Journal: ACS Nano
Funder: DOE/US Department of Energy

Insulator-superconductor transition of copper-oxide compound studied in fine detail

DOE/Brookhaven National Laboratory
Peer-Reviewed Publication

Using a highly controlled deposition technique, scientists from the US Department of Energy's (DOE) Brookhaven National Laboratory have synthesized ultrathin films containing multiple samples of a copper-oxide compound to study the compound's electronic behavior at near absolute zero, or minus 459 degrees Fahrenheit. Their study revealed that fluctuations in the distribution of electrical charges at near-absolute-zero temperature compete with superconductivity.

Journal: Proceedings of the National Academy of Sciences
Funder: US Department of Energy's Office of Science

What are aerosols?

DOE/Brookhaven National Laboratory

Art Sedlacek, an atmospheric scientist at Brookhaven National Laboratory, has flown on planes outfitted with high tech equipment through wildfire plumes and over the ocean, and has visited stations all over the globe to observe aerosols and understand the potentially big impact these suspensions of tiny particles can have on climate.

A view of the colorful microcosm within a proton

DOE/Brookhaven National Laboratory
Peer-Reviewed Publication

By analyzing the particle debris emitted from collisions of polarized protons at the Relativistic Heavy Ion Collider, scientists say they've found a new way to glimpse the microcosm within these building blocks of matter. They've measured a key effect of the so-called color interaction -- the basis for the strong nuclear force that binds quarks within the proton.

Journal: Physical Review Letters
Funder: DOE/US Department of Energy

Brookhaven Lab named an NVIDIA GPU Research Center

DOE/Brookhaven National Laboratory

NVIDIA, the world leader in visual computing, has named the US Department of Energy's Brookhaven National Laboratory a 2016 GPU Research Center. Brookhaven Lab was recognized for its use of graphics processing unit (GPU)-accelerated computing to conduct research in fields including materials science, physics, and climate science, and for its vision to further the application of GPU-accelerated computing in those and other research fields with a high computational demand.

First magnet girder for prototype cancer therapy accelerator arrives for testing

DOE/Brookhaven National Laboratory

A new kind of particle accelerator being developed by scientists at Brookhaven National Laboratory and Best Medical International has the potential to increase cure rates in treating cancer while minimizing radiation doses and damage to healthy tissue.

First light experiments at NSLS-II study radiation's effect on reactor pressure vessels

DOE/Brookhaven National Laboratory

Among the first experiments at the National Synchrotron Light Source II were studies of irradiated steels similar to those used in nuclear reactor pressure vessels to determine the structural properties of nanoscale features that lead to embrittlement.

Synchronized leaf aging in the Amazon responsible for seasonal increases in photosynthesis

DOE/Brookhaven National Laboratory
Peer-Reviewed Publication

High-tech photography in the Amazon reveals that young leaves grow in at the same times as older ones perish, in strong contrast to temperate forests in North America or Europe, resulting in seasonal increases in photosynthesis that must be taken into account to build more accurate climate models.

Journal: Science
Funder: Brazilian State Science Foundations/Sao Paolo & Amazônas, DOE/US Department of Energy, NASA Terra-Aqua Science, National Science Foundation, GoAmazon Project

Physicists zoom in on gluons' contribution to proton spin

DOE/Brookhaven National Laboratory

By analyzing the highest-energy proton collisions at the Relativistic Heavy Ion Collider (RHIC), a particle collider at the US Department of Energy's (DOE) Brookhaven National Laboratory, nuclear physicists have gotten a glimpse of how a multitude of gluons that individually carry very little of the protons' overall momentum contribute to the protons' spin.

AWARE project launched to gain new insights on climate of Antarctica

DOE/Brookhaven National Laboratory

Scientists from Brookhaven National Laboratory, working with a group led by the Scripps Institution of Oceanography, embarked on a new project that will lead to a better understanding of how much of the sun's light and the atmosphere's heat radiation reach the Antarctic surface.

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