Semiconductors

2. These are created by emitting photons when electrons recombine with holes
5. This type of bias is when current cannot flow easily
6. What happens to the electrical conductivity of a semiconductor as its temperature increases?
8. Control the flow of electrical current
9. This narrows or expands based on either forward or reverse bias (two words)
10. This type of bias is when current can flow easily
12. A material that is commonly used as a semiconductor

1. This is used in a diode to control the direction of current flow
3. The type of charge carriers that are found in n-type semiconductors
4. Adding impurities to a pure semiconductor
7. Semiconductors are useful in these cells because of their ability to convert light into electrical energy
11. Can only conduct electricity in one direction