Lecture 35 3D Band Structures Part 2

In this lecture we look at the band structure of several p-block elements that crystallize with structures that have a face centered cubic Bravais lattice. We start with aluminum, which has a cubic close packed structure, and then move onto the group 14 elements with the diamond structure (carbon, silicon, germanium and gray tin). Along the way we study the bonding fundamentals that differentiate metals, semiconductors and insulators. This lecture was designed and delivered by Patrick Woodward for use in the course Solid State Chemistry (Chem 7330) at Ohio State University.

[@beyzayigit1912]

thank you!!

[@kelvinxie1029]

"In real life, unless you are a member of the Russian Intelligence Agency, you are really unlikely to come across Po anytime soon." 🤣🤣🤣

[@chaudry123]

If you need to bring orbitals into account while making band structure, then what is BZ good for?

[@terminate5888]

Because this band structure will describe (by symmetry) the entire crystal. This is because you can replicate out the BZ to reproduce the entire reciprocal lattice (in this case used to showcase the different K values). This means you don't have to calculated the electron states of the entire crystal (which with an order of 10^22 atoms this becomes computationally very challenging) but only that of a very small region (that of only a few atoms).