In your own words 1Explain what a semiconductor is 2Describe

In your own words: 1.Explain what a semiconductor is. 2.Describe one aspect of the operation of a semiconductor using principles from chemistry (for example: intrinsic, extrinsic, unbiased, forward bias, or reverse bias). 3.Give one application of semiconductors in technology.

Solution

The materials in which the valance band is fully filled, conduction band is almost empty and forbidden band is very small about 1ev,are considered as semiconductors

Silico and germanium crystal in its purest form is considered as intrinsic semiconductors.

N_type si+p(Silicon +phosphorus)

P_type b+si (boron+silicon)

Diodes, mosfets