Cobalt hasn't been mined in the U.S. in 30 years, but the blue metal's crucial role in energy and communications technologies is changing that.
UCLA device is a step toward video displays and phones that could swell or shrink.
Inexpensive chips harvest mechanical energy to charge batteries for wireless sensors.
A new computer program accurately predicts the behavior of proposed materials, which means faster development of new electronics and solar cells.
Nanotube anodes could lead to higher-energy, faster-charging batteries for cell phones and notebooks.
Researchers hope a microchip that mimics the basic functioning of the brain could perform complex calculations while using little power.
Adding solar cells to screens could prolong the battery life of many electronic gadgets.
A flexible electronic device stuck on the skin could provide irritation-free monitoring of heart, brain, and muscle activity.
An optical waveguide is an important step toward a completely new kind of computer.
A new fabrication technique lets batteries use tin electrodes, and store more energy.