The Band Structure of Semiconductors Differs from That of Metal

question 59

Multiple Choice

The band structure of semiconductors differs from that of metal conductors in that ________

• A)metal bands are relatively empty, while semiconductor bands are nearly full.
• B)metal bands are nearly full, while semiconductor bands are relatively empty.
• C)metal conduction bands are lower in energy than valence bands, while semiconductor conduction bands are higher in energy than valence bands.
• D)metal conduction bands are higher in energy than valence bands, while semiconductor conduction bands are lower in energy than valence bands.
• E)valence bands in metals are either partially empty or overlap with conduction bands, while these bands in semiconductors are separated by a small gap.