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Lecture
Semiconductor Band Structure
Description
This lecture revisits the concept of bandgap in semiconductors, emphasizing the interaction between neighboring atoms in a crystal to explain the presence of a bandgap. The derivation of the secular equation within the Bloch wave theory framework is discussed, along with the dispersion curve essential for describing the band structure of semiconductors. The lecture also covers the notion of effective mass for free carriers, providing early insights into this important concept.
Official source
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