The process of adding impurities to a semiconductor material to increase its conductivity is

Explanation

Doping involves introducing specific impurities into a semiconductor to modify its electrical properties, enhancing its conductivity by creating either n-type or p-type semiconductors.

Rectification is the process of converting alternating current (AC) into direct current (DC) using diodes, which allow current to flow in one direction.
Emission refers to the release of charge carriers (electrons or holes) from a semiconductor, often resulting in the production of light in devices like LEDs
Stabilization involves techniques to maintain the consistent performance of semiconductor devices under varying conditions.

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