nanoHUBU Thermoelectricity L27 Thermoelectric Transport Parameters Using Full Band Dispersions

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Table of Contents: • 00:09 Lecture 2.7: Using full band dispersions (ex. of Bi2Te3) • 00:52 motivation • 02:04 Bonus lecture: outline • 02:56 review: TE equations • 04:02 review: differential conductivity • 05:52 Bonus lecture: outline • 06:01 number of modes: definition • 07:38 number of modes: 1D example • 09:27 number of modes: 2D example • 12:15 number of modes: effect of dimensionality • 13:04 number of modes: Bi2Te3 (electron) • 15:51 number of modes: Bi2Te3 (phonon) • 17:56 Bonus lecture: outline • 18:04 electronic TE properties • 19:40 electronic TE properties: conductivity • 21:33 electronic TE properties: Seebeck • 22:00 electronic TE properties: thermal conductivity • 22:43 Bonus lecture: outline • 22:49 Bonus lecture: outline • 24:39 lattice thermal conductivity: calibrate MFP • 25:58 lattice thermal conductivity: energy-dep. MFP • 26:39 TE performance of Bi2Te3 • 28:52 summary: TE properties from full band approach • 30:24 summary: TE properties from full band approach • This video is part of the nanoHUB-U course Thermoelectricity: From Atoms to Systems. The second week is taught by Mark Lundstrom. (http://nanohub.org/courses/teas) • 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.

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