Gallium nitride-based blue LEDs are typically grown on patterned sapphire substrates that are imaged using SEM and optical microscope systems to ensure the substrate has the correct structure. Researchers in Taiwan developed a new gallium nitride-based metalens that improves the clarity of substrate images.
Read More
A team of scientists at Northwestern University has discovered that some ferroelectric materials are hiding a surprise. Layered perovskites don’t conform to conventional wisdom—instead, these materials completely turn off polarization if enough strain is applied to them.
Read MoreLeft, prototype of SOFC stack. Right, samples of interconnects being developed in a public–private partnership with Alfred University, Solid Cell, RocCera and the the New York State Energy Research and Development Authority.…
Read More