and the rest go through in the other direction. The researchers deposited nanotubes in the pores and these tubes form the plates of the capacitor (see picture, right). The result is a capacitor ...

This not only creates the dielectric layer but also sets the expected current direction. It is possible, at least sometimes, to use the same technique to regrow the oxide and bring a capacitor ...

Capacitors play three important roles in an electronic circuit ... Diode The diode is a two-terminal electronic component that allows an electric current to pass in one direction (low resistance) ...