Structural and Electrical Properties of Pulsed Laser Deposited Yttrium Doped Zirconium Oxide Thin Film Stabilization
Solid Oxide Fuel Cells are devices that use a series of electrochemical reactions to convert chemical energy from fuel into electricity. These fuels, such as Hydrogen (H2), Carbon Monoxide (CO), and Oxygen (O2), have a high conversion efﬁciency. Solid Oxide Fuel Cells, in comparison to coal power plants, produce a higher electrical conversion efﬁciency. Solid Oxide Fuel Cells are a possible candidate for energy production. However, Solid Oxide Fuel Cell’s high temperatures (800-1000 degrees Celsius) create a lower ionic conductivity of the electrolytes. This ionic conductivity limits Solid Oxide Fuel Cell applications. When decreasing the temperatures, the ohmic resistance, as a thin ﬁlm, increases. In our research an Yttria Stabilized Zirconia layer is produced from the ﬁne dimple grain structure allowing high ﬂow of oxygen mobility. This ion mobility increases the ionic conductivity and decreases the ohmic losses. The goal of our research is to determine the Yttria Stabilized Zirconia thin ﬁlm synthesis conditions which lead to minimum ohmic resistance in these ﬁlms. The method that we will use is to test different molecular ratios of Yttrium (III) Oxide (Y2O3) and Zirconium (IV) Oxide (ZrO2) and deposit these different ratios onto the substrates. We will also use different substrates and monitor the effect each substrate on the Yttria Stabilized Zirconia thin ﬁlm properties. These thin ﬁlms will be characterized through electrical measurements such as Four Point Probe Resistivity measurements as well as structural and compositional characterization through Atomic Force Microscopy, Scanning Electron Microscope, and Energy Dispersive X-Ray Spectroscopy.
"Structural and Electrical Properties of Pulsed Laser Deposited Yttrium Doped Zirconium Oxide Thin Film Stabilization,"
Locus: The Seton Hall Journal of Undergraduate Research: Vol. 2, Article 4.
Available at: https://scholarship.shu.edu/locus/vol2/iss1/4