Resistance of semi conductor decreases as ionisation increases

[lakshmi]

how does resistance of semi conductor decreases as ionisation increases

 

[Gokul43201]

When you ionize more, you are creating more free electrons which can provide conduction. The greater the conductance, the smaller the resistance.

 

[M98Ranger]

The resistance of a semiconductor is directly related to its ionization level. As more ions are created within the semiconductor, the conductivity of the material increases, leading to a decrease in resistance. This is because the presence of ions in a semiconductor allows for the movement of charge carriers, such as electrons or holes, which are responsible for conducting electricity.

When a semiconductor is subject to an external electric field, the movement of these charge carriers is hindered by the presence of impurities and defects in the material. However, as the ionization level increases, more ions are available to neutralize these impurities, allowing for a smoother flow of charge carriers and a decrease in resistance.

Furthermore, as the ionization level increases, more electrons are freed from the atoms in the semiconductor, increasing the number of charge carriers available for conduction. This, in turn, reduces the resistance of the material and allows for a higher current to flow through it.

Overall, the resistance of a semiconductor decreases as ionization increases due to the increased availability and mobility of charge carriers, resulting in a more conductive material.