NiO?YSZ Anode and LSM Cathode Thin Films Grown by Pulsed Laser Deposition for Solid Oxide Fuel Cells

F. AUDEBERT; R. E. JUAREZ; F. SAPORITI; M. BOUDARD

Brotas

Conferencia; Nanomat 2017; 2017

UFSCAR-CNPQ

Solid oxide fuel cells (SOFCs) are potential candidates for next generation high efficiency power sources. Planer thin-film SOFCs consist of a multi-layered stack of cells comprised of a fully dense electrolyte layer of conducting oxygen ions and conducting porous anode, cathode, and interconnectors. In a previous work YSZ and 8YSZ + 4CeO2 electrolytes thin films grown by pulsed laser deposition (PLD) technique were investigated [1]. In the present work, films of 30% NiO and 70% Yttria stabilized zirconia (NiO-YSZ) for the anode and films of La80Sr20MnO3 (LSM) for the cathode were grown by PLD. A Nd-YAG laser (355 nm) and targets of the same composition of the anode and the cathode films were used. Films were deposited on Soda-Calcia-Silica glass and Si(100) substrates at room temperature. The morphology and structural characteristics of the samples have been studied by means of X-ray diffraction and scanning electron microscopy. All the samples show the characteristic particulates deposition in films grown by PLD. Porous polycrystalline NiO-YSZ and LSM films with columnar structure have been obtained with a thickness of 1?1.5 µm.