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Meeting MS&T22: Materials Science & Technology
Symposium Society for Biomaterials: Student Poster Contest + Rapid Fire
Presentation Title C-17: Effect of Strain on the Thermoelectric Properties of Epitaxial La0.8Sr0.2CoO3 Thin Films
Author(s) Mohammad El Loubani, Gene Yang, David Hill, Dongkyu Lee
On-Site Speaker (Planned) Mohammad El Loubani
Abstract Scope ABO3 oxides have been highlighted as an alternative material for thermoelectric (TE) generators, which convert heat energy into electricity. The TE efficiency is mainly dependent on the intrinsic properties such as the thermopower and electrical conductivity of oxides, where oxygen defects play a determining role in such properties. In this regard, using epitaxial strain induced by the lattice mismatch between the film and the substrate is a promising approach to modulate the concentration of oxygen defects controlling the TE efficiency. However, the influence of strain on the thermoelectric properties of oxide materials is not fully understood. In this study, using epitaxial La0.8Sr0.2CoO3 thin films as a model system, we investigate the effect of strain-controlled oxygen defects on the thermoelectric properties of oxides. Films with zero-, tensile-, compressive strain are evaluated in terms of oxygen vacancies, thermopower, and electrical conductivity. We show that strain can effectively control the TE efficiency.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

C-11: Applying Bioactive Glass to Long-term Drug Delivery
C-12: Aqueous Chemical Deposition of K0.5Na0.5NbO3 Ferroelectric Thin Films for Biomedical Applications
C-13: Blood Coagulation Response to Four Medical Grade Polyurethanes Biomaterials
C-14: Characterization of the Microstructure, Microhardness and Electrochemical Corrosion Behavior of a NbTiCr Multicomponent Alloy: A First Step Toward an Orthopedic-implant Application
C-16: Decanoic Anhydride-modified Chitosan Membranes Loaded with Bupivacaine and cis-2-decanoic Acid Affect Cytokine Expression of Keratinocytes
C-17: Effect of Strain on the Thermoelectric Properties of Epitaxial La0.8Sr0.2CoO3 Thin Films
C-19: Polymerized High Internal Phase Emulsions Derived from Photocurable Polycaprolactone for Tissue Engineering Applications
C-20: Understanding of Interface-property Relationships of Vertically Aligned Mixed Ionic Electronic Conductor-ionic Conductor Heterostructures
C-21: Villi Inspired Elastomeric Interlocking Device for Intestinal Retentive Applications

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