The fluorescent lamp , widely used in the home and at work, contains a rarefied inert gas with a fraction of a percent mercury vapor, which produces a plasma when heated and agitated by electricity, from the power line to which the lamp is connected. The accelerated particles gain energy, collide with atoms, eject additional electrons and thus maintain the plasma, even if some other particles re-combine. The collisions also cause mercury atoms to emit light, and in fact, this source of light is more efficient than conventional lightbulbs. A fluorescent lamp. The filaments at the ends also release electrons.
Collisions quickly multiply their number.
However, ions and electrons respond much faster than that, hence the process stays the same. As noted, the Sun consists of plasma. Another important plasma in nature is the ionosphere , starting about 70-80 km above ground. Then the remaining ions and electrons recombine, while in the absence of sunlight new ones are no longer produced. However, that layer is re-established at sunrise.