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Unformatted text preview: the difference of a semiconductor and a metal ay 0 K? 5. What are the common dopants for GaAs (n-type and p-type)? If a piece of GaAs is doped with the same number of donors and acceptors with full ionization, is this an intrinsic semiconductor or an extrinsic semiconductor? Why? 6. What are the necessary conditions for optical emission to occur? Which semiconductors will have higher efficiency of optical emission, director semiconductors or indirect semiconductors? Why?...
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This note was uploaded on 05/05/2010 for the course ECE 331 taught by Professor Rajan during the Spring '09 term at Ohio State.
- Spring '09