TODAY!! Physics, Astronomy & Geosciences Present Spring ’25 Sabbatical Talk

Tuesday, May 20, 2025 │ 11am – 12noon
Science Complex, room 1230

“Tuning Electrical Conductivity and Metallicity in Epitaxial Thin Films of Perovskite Metal Oxides”

Speaker: Dr. Rajeswari M. Kolagani, Professor, Department of Physics, Astronomy & Geosciences, Towson University

Abstract: Perovskite Metal Oxide Materials have potential for application in clean energy technologies such as photoelectrodes and photocatalysts for solar energy harvesting. Successful realization of these applications calls for tuning material properties by engineering the structure, morphology, and chemical composition. Epitaxial thin films are suitable as model systems for developing strategies to optimize the intricate and interdependent parameter-space for tuning the material properties. Electrical conductivity is a property relevant for functionality in photoelectrode and photocatalytic applications. I will discuss recent results from our laboratory that point to novel approacheEEs for tuning electrical conductivity using oxygen stoichiometry variation and lattice mismatch strain as  handles. Our results also provide new insights into the fundamental physics of the influence of disorder on electronic transport in metal oxide thin films.

 

 

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This post was written by Charles, Amanda G.