nanoHUB-U Thermoelectricity L2.2: Thermoelectric Transport Parameters - TE Transport Coefficients

Table of Contents:
00:09 Lecture 2.2: TE Transport Coefficients
00:30 coupled charge and heat currents
01:04 Lecture 2 topics
01:26 1) conductivity (non-degenerate case)
04:29 conductivity (degenerate case)
05:43 conductivity (general case)
06:19 measured conductivity
06:50 carrier concentration and the Fermi level
08:08 location of the Fermi level
08:33 2) Seebeck coefficient
09:47 Seebeck coefficient of Ge
11:17 Seebeck coefficient of different materials
12:07 3) electronic thermal conductivity
12:27 electronic thermal conductivity
13:10 electronic thermal conductivity
14:28 electronic heat conductivity
15:35 basic TE equations with phonons
16:00 lattice thermal conductivity
16:31 transport coefficients: recap
17:13 example: TE transport parameters of n-Ge
17:52 example: mean-free-path of n-Ge
18:48 TE transport parameters of n-Ge: resistivity
19:19 TE transport parameters of n-Ge: Seebeck coeff.
20:17 TE transport parameters of n-Ge: Peltier coeff.
20:30 TE transport parameters of n-Ge: Peltier coeff.
21:14 TE transport parameters of n-Ge:
21:53 summary: basic equations with phonons

This five-week short course introduces students to the thermoelectric theory and applications using a unique, "bottom up" approach to carrier transport that has emerged from research on molecular and nanoscale electronics.
The first two weeks of the course introduce this new perspective and connects it to the traditional treatment of thermoelectric science. Landauer formalism provides a unified framework to study both electron and phonon transport. The following three weeks introduce latest nanoscale and macroscale characterization techniques, the design of thermoelectric systems, and recent advances in nanoengineered thermoelectric materials and physics.