Compare and contrast n-type semiconductors with p-type semiconductors.
A.
B.
C.
2006-10-18 15:46:30 · 3 answers · asked by xxgodsgift2youxx 1 in Science & Mathematics ➔ Physics
Pure silicone is a crystalline structure with good insulating qualities.
When the pure silicone is "doped" with phosphorus, the increased electron density of the crystal becomes an N-type semiconductor.
When boron is added to the pure silicone crystal, the boron will repel surrounding electrons and leave holes. The silicone is then a P-type semiconductor.
When the two types are joined together, a voltage potential of approximately 0.6 volts will be present at the junction - however, no current will flow because the doping impurities are held firmly in place because they have now become part of the silicone crystalline lattice.
2006-10-18 18:23:20 · answer #1 · answered by LeAnne 7 · 0⤊ 0⤋
They contain opposite polarity charge carriers. One has excess electrons, the other has excess holes.
2006-10-18 22:51:22 · answer #2 · answered by cdf-rom 7 · 0⤊ 0⤋
Like the other guy said, one has electons and the other has holes. http://computer.howstuffworks.com/diode.htm
2006-10-18 23:17:47 · answer #3 · answered by Jack 7 · 0⤊ 0⤋