Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Lead Telluride"”.
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Superconductivity at the Surface of Lead-Telluride
Made available in DSpace on 2015-05-12T22:39:01Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7412114.PDF: 3427652 bytes, checksum: 8223ae65be91ae14197f8396e77aea29 (MD5) Previous issue date: 1973
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Ab initio study of electron transport in lead telluride
… enhancement of thermoelectric figure of merit of lead telluride (PbTe) via nanostructures. Despite the experimental progress, current understanding of the electron transport in PbTe is based on either band structure simulated using first-principles in combination with constant relaxation time …
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Effective masses of free carriers in lead telluride: their temperature dependence and contribution to transport properties
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1962.
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New Approaches To Chalcogenide Materials For Thermoelectrics: Lead Telluride-Based Nanostructures And Facile Synthesis Of Tetrahedrite And Doped Derivatives
… these issues: (1) Target higher ZT by assembling lead telluride (PbTe) nanoparticles from a multi-gram synthesis utilizing ligand stripping techniques or deliberately including discrete lead sulfide (PbS) NCs. (2) Develop a rapid, convenient synthesis of tetrahedrite (Cu12Sb4S13).</p> <p>Approach …
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Temperature effects on the electronic properties of lead telluride (PbTe) and the influence of nano-size precipitates on the performance of thermoelectric materials. (SrTe precipitates in PbTe bulk material)
This study seeks to evaluate the temperature effects on the electronic properties of thermoelectric materials, using first principles Density Functional Theory (DFT) calculations by incorporating the temperature effects on structural properties of the material. Using the electronic properties …
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Lattice thermal conductivity of bulk and polycrystalline PbTe from computer simulations
Lead telluride is a reference high-performance thermoelectric which possesses a remarkable efficiency at intermediate temperatures in its pristine form, largely due to its low lattice thermal conductivity. Several studies have been proposed to analyse this thermal conductivity, but their range of …
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Optical characterization of complex mechanical and thermal transport properties
… allowed the measurement of thermal transport in lead telluride and gallium arsenide-aluminum arsenide superlattices, and also provided the first direct observation of the initial crossover from diffusive to ballistic thermal transport in single crystal silicon and gallium arsenide at room …
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Modeling and Analysis of Advanced Thermoelectric Modules Considering Thermal Losses
… results on the half-Heusler, skutterudites, and lead telluride materials, segmented TEG�s have been analyzed for their performance in terms of power and efficiency. Non-linear and temperature-dependent material properties and thermal losses were considered in the numerical model. Contact …
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Hybrid solar thermoelectric systems utilizing thermosyphons for bottoming cycles
… The thermoelectric materials bismuth telluride, lead telluride, and silicon germanium were combined with thermosyphon material-working fluids of copper-water, stainless steel-mercury, and nickel-liquid potassium for this work. We solved the energy equation at the evaporator with a …
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SYNTHESIS AND CHARACTERIZATION OF NANOSTRUCTURED MATERIALS FOR THERMOELECTRIC ENERGY CONVERSION
In 2012, more than 58% of the energy produced in the US was rejected in the form of heat. The rapid development of thermoelectric materials in the past decade has raised new hopes for the possibility of directly converting some of this waste thermal energy back to electricity. However, the large …
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Theoretical study on the band structure of Bi1̳-x̳Sbx̳ thin films
… at the L points will become linear, which leads to the formation of three-dimensional Dirac points. By synthesizing Bi1-xSbx thin films, we have two more parameters to control the band structure, namely film thickness and growth orientation. We have developed the …