Investigation of nozzle shape effect on Sm_0.1Ce_0.9O_1.95 thin film prepared by electrostatic spray deposition

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• 作者：Bussarin Ksapabutr ; Manop Panapoy ; Kittikhun Choncharoen ; Sujitra Wongkasemjit ; Enrico Traversa
• 关键词：Samarium doped ceria ; Electrostatic spray deposition ; Thin film ; Solid oxide fuel cells
• 刊名：Thin Solid Films
• 出版年：2008
• 期刊代码：78_00406090
• 类别：ph
• 出版时间：30 June 2008
• 卷：516
• 期：16
• 页码：5618-5624
• 文件大小：2215 K

摘要

Dense samarium doped ceria (SDC) thin films are deposited using electrostatic spray deposition (ESD) technique. The influences of nozzle shape on the distribution of liquid jet at the nozzle tip and the morphology of the deposited SDC films are elucidated. Geometries of three nozzles employed are flat, sawtooth and wedge tips. From the observation of jet formation, the nozzle in flat shape gives the highest distribution of emitted droplets. The deposited films are characterized using a combination of XRD, SEM and AFM techniques. XRD results reveal that the single-phase fluorite structure forms at a relatively low deposition temperature of 400 °C. The flat spray tip provides the most uniform and smooth thin films, and also presents the lowest agglomeration of particles on thin-film surface.