What is a semiconductor? Describe the two main types of semiconductors and contrast their conduction mechanism

Semiconductors are substances whose conductance lies between that of metals (conductors) and insulators.

N-type - The increase in conductivity in these semiconductors is caused by negatively charged electrons.

P-type - The increase in conductivity in these semiconductors is caused by positively charged holes.

Semiconductor is a solid that is a perfect insulator at zero degrees Celsius but conducts some electricity at room temperature.

Semiconductors are classified into two types: n-type and p-type.