Solid electrolyte for intermediate temperature solid oxide fuel cell (IT-SOFC) is a challenge for material researchers. However, Gd doped ceria (CGO) found to be a promising electrolyte among the other competitive materials. In the present investigation, we report the structural and electrical properties of CGO thin films prepared by spray pyrolysis technique. The process parameters were optimized for synthesizing Ce0.9Gd0.1O1.95 (CGO10) films. Films were characterized by XRD and EDS and are observed to be phase pure. The SEM showed the dense and uniform film growth. The dc conductivity measured is of the order of 0.5S/cm at 623K.

The Gd doped ceria (CGO) in thin layers is of great interest for low temperature operation. In the present investigation, we report on the use of spray pyrolysis technique for the synthesis of CGO thin films. The process parameters were optimized for synthesizing Gd0.1Ce0.9O1.95 films. Films were characterized by XRD, EDS, SEM, and AFM and are observed to be phase pure and dense with surface roughness of the order of not, vert, similar5 nm. The d.c. conductivity was also measured and is observed to be not, vert, similar0.5 S/cm at 623 K.