SDC/YSZ双层电解质薄膜的制备与特性  

Preparation and Properties of the SDC/YSZ Bilayer Electrolyte Thin Films

作　　者：苏海莹[1] 贾晓静[1] 许彦彬[1] 刘华艳[1] 范悦[1] 丁铁柱[1] 

机构地区：[1]内蒙古大学物理科学与技术学院,内蒙古自治区高等学校半导体光伏技术重点实验室,呼和浩特010021

出　　处：《人工晶体学报》2016年第7期1732-1735,共4页Journal of Synthetic Crystals

基　　金：国家自然科学基金(11264025)

摘　　要：利用脉冲激光沉积技术(PLD)在MgO单晶片基底上制备Ce_(0.8)Sm_(0.2)O_(2-δ)/ZrO_2∶Y_2O_3(SDC/YSZ)双层电解质薄膜。X射线衍射仪(XRD)和扫描电子显微镜(SEM)的结果显示SDC/YSZ双层电解质薄膜沿(111)方向择优生长,随着退火温度的升高,薄膜变得均匀致密,结晶度得到改善,(111)衍射峰强度变大,择优生长取向明显;电化学测量表明,SDC/YSZ双层电解质薄膜的离子电导率比单层YSZ薄膜的离子电导率高。The heterostructure thin films of SDC/YSZ were deposited on MgO single crystal substrate by pulsed laser deposition （PLD） method. The properties of thin films were studied through X-ray diffraction （XRD） and scanning electron microscopy（SEM）. Results show that the SDC/YSZ electrolyte thin films are preferential growth along the （111 ） direction. This kind of thin films do not show crack, growing uniformly, densely and smoothly. With the increase of annealing temperature, crystallinity of films improves. Electrochemical measurements show the ion conductivity of SDC/YSZ electrolyte films are much higher than the ion conductivity of single YSZ thin films.

关 键 词：固体氧化物燃料电池(SOFC) SDC/YSZ双层电解质 离子电导率 

分 类 号：O484[理学—固体物理] TM911.4[理学—物理]