components for converting light to an electrical current such as solar and photovoltaic cells and devices that can electronically control the propagation of light. Deng et al. report a charge ...

Active electronics—components that can control electrical signals—usually contain semiconductor devices that receive, store, ...

Active components rely on an external power source to control or modify electrical signals ... the main uses of resistors is to regulate the current in circuits containing LEDs and transistors. These ...

Spintronics—devices that use microscopic magnetism in conjunction with electric current—could lead to computing technology as fast as conventional electronics but much more energy efficient.