High Figure of Merit Lead Selenide Doped with Indium and Aluminum for Use in Thermoelectric Waste Heat Recovery Applications at Intermediate Temperatures

High Figure of Merit Lead Selenide Doped with Indium and Aluminum for Use in Thermoelectric Waste Heat Recovery Applications at Intermediate Temperatures

Bibliographic Details
Main Author: Evola, Eric G.
Language:English
Published: The Ohio State University / OhioLINK 2012
Subjects:
Materials Science
Mechanical Engineering
PbSe
indium
aluminum
resonant level
high zT
thermoelectric
figure of merit
lead selenide
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=osu1338307382
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-osu13383073822021-08-03T06:05:17Z High Figure of Merit Lead Selenide Doped with Indium and Aluminum for Use in Thermoelectric Waste Heat Recovery Applications at Intermediate Temperatures Evola, Eric G. Materials Science Mechanical Engineering PbSe indium aluminum resonant level high zT thermoelectric figure of merit lead selenide In this thesis, a study of lead selenide (PbSe) doped with the group III elements indium and aluminum is presented in the context of thermoelectric devices. Empirical transport measurements using synthesized bulk samples are presented and discussed with particular interest in resonant level effects which can increase the thermoelectric figure of merit. Using the measured transport data as input parameters, several material properties including Fermi level, effective mass and scattering parameter are calculated which further characterize the system. Although data from aluminum doped samples clearly show prominent resonant level effects at around 80K, this feature vanishes at elevated temperatures. In contrast, indium doped samples do not show any resonant level effect as indicated by the Pisarenko relation, but display very similar properties to aluminum especially at high temperatures. Indium is a very effective n-type dopant for temperature ranges corresponding to waste heat recovery in industrial applications and results in a high thermoelectric figure of merit (zT) in excess of 1.2 at 600K without using the relatively rare element tellurium. 2012-06-25 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1338307382 http://rave.ohiolink.edu/etdc/view?acc_num=osu1338307382 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Materials Science
Mechanical Engineering
PbSe
indium
aluminum
resonant level
high zT
thermoelectric
figure of merit
lead selenide
spellingShingle Materials Science
Mechanical Engineering
PbSe
indium
aluminum
resonant level
high zT
thermoelectric
figure of merit
lead selenide
Evola, Eric G.
High Figure of Merit Lead Selenide Doped with Indium and Aluminum for Use in Thermoelectric Waste Heat Recovery Applications at Intermediate Temperatures
author Evola, Eric G.
author_facet Evola, Eric G.
author_sort Evola, Eric G.
title High Figure of Merit Lead Selenide Doped with Indium and Aluminum for Use in Thermoelectric Waste Heat Recovery Applications at Intermediate Temperatures
title_short High Figure of Merit Lead Selenide Doped with Indium and Aluminum for Use in Thermoelectric Waste Heat Recovery Applications at Intermediate Temperatures
title_full High Figure of Merit Lead Selenide Doped with Indium and Aluminum for Use in Thermoelectric Waste Heat Recovery Applications at Intermediate Temperatures
title_fullStr High Figure of Merit Lead Selenide Doped with Indium and Aluminum for Use in Thermoelectric Waste Heat Recovery Applications at Intermediate Temperatures
title_full_unstemmed High Figure of Merit Lead Selenide Doped with Indium and Aluminum for Use in Thermoelectric Waste Heat Recovery Applications at Intermediate Temperatures
title_sort high figure of merit lead selenide doped with indium and aluminum for use in thermoelectric waste heat recovery applications at intermediate temperatures
publisher The Ohio State University / OhioLINK
publishDate 2012
url http://rave.ohiolink.edu/etdc/view?acc_num=osu1338307382
work_keys_str_mv AT evolaericg highfigureofmeritleadselenidedopedwithindiumandaluminumforuseinthermoelectricwasteheatrecoveryapplicationsatintermediatetemperatures
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