Unformatted text preview: a) Which cell has to be on top (first to receive the sunlight) for both to work simultaneously, and b) why? 4. Explain why the partially filled band in sodium metal is exactly half filled. 5. A solid has a completely filled lower energy band and a partially filled higher energy band. a) Predict the electrical properties of this solid on the basis of its band diagram. b) What would happen to the electrical properties of this solid if all of the electrons were removed from the conduction band and why? c) In chemical language is this an oxidation or a reduction process?...
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- Spring '07
- Semiconductors, Condensed matter physics, valence band, Band gap, Electronic band structure