Energy & Green Tech

Scientists elevate quantum dot solar cell world record

Researchers at the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) established a new world efficiency record for quantum dot solar cells, at 13.4 percent.

Energy & Green Tech

High-performance sodium ion batteries using copper sulfide

Researchers presented a new strategy for extending sodium ion batteries' cyclability using copper sulfide as the electrode material. This strategy has led to high-performance conversion reactions and is expected to advance ...

Energy & Green Tech

Graphene unlocks the promise of lithium sulfur batteries

Many battery scientists are interested in the potential of lithium sulfur batteries because, at least in theory, they offer a high energy density at relatively low cost. However, lithium sulfur batteries face a number of ...

Engineering

Achieving ultra-low friction without oil additives

Researchers at Georgia Institute of Technology have developed a new process for treating metal surfaces that has the potential to improve efficiency in piston engines and a range of other equipment.

Engineering

Collaborating to better understand metal degradation

Southwest Research Institute and The University of Texas at San Antonio are working together to understand the susceptibility of additively manufactured materials to hydrogen embrittlement, a common problem that can lead ...