Salahuddin and Datta found that, under certain conditions, the use of ferroelectric materials leads to a negative capacitance (that is, the voltage of the capacitor decreases as charge is added).

the positive marked terminal is connected to -5V from the power connector, meaning that a negative voltage is across the capacitor. That's bad, but not necessarily catastrophic. The capacitor is ...

A new approach to materials engineering promises to overcome the limitation of capacitors commonly used in smartphones, displays and electric vehicles, according to a study published in Nature.

When a voltage is applied across the plates, an electric field develops in the dielectric, causing positive charges to collect on one plate and negative charges on the other. This charge separation ...

A very recent development is a hybrid supercapacitor, which has a capacitor-type titanium carbide-based negative electrode and a battery-type graphene-hybrid positive electrode. The novel energy ...