Long Answer (no math)
Describe the band structure of a metal, semiconductor, and insulator. How do they differ (band gap, energy, conductivity)? What are the "bands" and how are they formed? What makes these extended structures different from discrete molecules? Lastly, describe a nano semiconductor's band structure, comparing it's band structure to a bulk semiconductor's band structure?
Long Answer (no math) Describe the band structure of a metal, semiconductor, and insulator. How do...
Band structure Consider a one-dimensional semiconductor crystal consisting of 11 atoms with nearest- neighbor atoms separated by a 5 . The band structure for electrons in the conduction band is given by Ec(k) = 101(k-0.2n)2-A(k-02n)"] + 2.25 [eV] and the band structure for holes in the valence band is given by where the wavevector k s in units ofA-1. The allowed wavevectors are--< k 즈 al (a) Is this a direct or indirect gap semiconductor? What is the energy gap...