Diamond spintronics and graphene-based infrared detectors are among leading-edge technologies reported at annual Materials Day Symposium at MIT.

New ultralow-power circuit improves efficiency of energy harvesting to more than 80 percent.

“Whispering gallery” effect confines electrons, could provide basis for new electron-optics devices.

Report highlights enormous potential and discusses pathways toward affordable solar energy.

Circuit that reduces power leakage when transmitters are idle could greatly extend battery life.