Question

When the temperature of an extrinsic semiconductor is increased, the pronounced effect is on

• A. Junction capacitance
• B. Minority carriers
• C. Majority carriers
• D. None of the above

Answer 1

The correct option is B Minority carriers

When the temperature of n-type semiconductor is increased, since then all the donor atoms have already donated their free electrons at room temperature, the additional thermal energy only increases the number of thermally generated carriers. As a result, concentration of minority carriers increases.