Excited State Dynamics in 1D Thermoelectric Materials

dc.contributor.authorGima, Kevin Victor
dc.date.accessioned2021-03-15T19:17:04Z
dc.date.available2021-03-15T19:17:04Z
dc.date.issued2020
dc.description.abstractHere, nonadiabatic computations are used to study the thermoelectric effect and evaluate electron relaxation rates in lead telluride nanowires. κ_e = 1/τ_el is defined as the electron relaxation rate. It is directly connected to the thermoelectric figure of merit in a material. This work provides computational evidence in support of the proceeding hypothesis. The hypothesis is the electron relaxation rates will comply with the following band gap law: Ke = Aexp(-αΔE), where Ke is the electronic relaxation rate, A and α are constants, and ΔE is the energy difference between the initial and final states. This work reports results on PbTe (lead telluride) atomistic models doped with sodium and iodine that contain approximately 300 atoms in simulation cells with periodic boundary conditions.en_US
dc.identifier.urihttps://hdl.handle.net/10365/31793
dc.publisherNorth Dakota State Universityen_US
dc.rightsNDSU policy 190.6.2en_US
dc.rights.urihttps://www.ndsu.edu/fileadmin/policy/190.pdfen_US
dc.titleExcited State Dynamics in 1D Thermoelectric Materialsen_US
dc.typeThesisen_US
ndsu.advisorKilin, Dmitri
ndsu.collegeScience and Mathematicsen_US
ndsu.degreeMaster of Science (MS)en_US
ndsu.departmentPhysicsen_US

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