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Meeting Materials Science & Technology 2020
Symposium 2020 Undergraduate Student Poster Contest
Presentation Title Alloying MnGeTe2 Enables High Thermoelectric Performance
Author(s) Grace Rome
On-Site Speaker (Planned) Grace Rome
Abstract Scope Thermoelectric materials convert thermal gradients into electricity. They’re currently used in space applications to provide power, but they also have the potential to be used to increase energy efficiency by harnessing waste heat. However, to reach the point of wide-spread application, the efficiency of thermoelectric materials must be increased. This work investigates MnGeTe2, a high performing thermoelectric material. Doping/alloying was used in order to obtain a better understanding of the electronic properties by adjusting the carrier concentrations of the materials. The samples were tested for their structural and electrical properties and compared to literature. Bismuth doping was found to improve the thermoelectric figure of merit (zT) in comparison to literature values within the same composition space. Our findings also indicate that the material retains a cubic structure across a large composition space, indicating that there are opportunities for significant improvements of thermoelectric performance.


Additive Manufacturing of Titanium-based Functionally Graded Materials: Experiment Characterization and FEA Modeling
Alloying MnGeTe2 Enables High Thermoelectric Performance
Analysis of High Entropy Ceramics Prepared via Steric Entrapment and Solid-state Sintering Methods: Crystal Structure
Comparative Study of Transport propeties of Bismuth Sulfide with Different Dopants
Crack Driving Force Expressions Using Compliance Approach in Clamped Beam Bending Geometry
Crystal Structure and Lithium Ionic Transport Behavior of Li Site Doped Li7La3Zr2O12
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Origin of the Phase Transition in Lithium Garnets
Quantitatively Accounting for the Effects of Surface Topography on the Oxidation Kinetics of Additive Manufactured Hastelloy X Processed by Electron Beam Melting
Supercritical Synthesis of VO2 Nanoparticles For Smart Window Films
Unique S-scheme Heterojunctions in Self-assembled TiO2/CsPbBr3 Hybrids for CO2 Photoreduction

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