Abstract
Nano-crystalline films of Sm0.5Sr0.5CoO3 (SSC) have been formed on CeO2 substrates by spraying stoichiometric aqueous solution containing Sm, Sr, and Co ions. Effect of polyvinyl alcohol (PVA) addition as a complexing agent in spray solution on stoichiometry, crystallite size, morphology, and transport properties of film are studied. The results showed that the SSC cathode had maximum crystallite size for 40% PVA addition. Electrical performance of film decreases with decrease in the particle size, while the electronic to ionic predominance transition temperature decreases with decreasing particle size. These films are studied for their potential application as a cathodic material in developing intermediate temperature solid oxide fuel cells.
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This work was financially supported by Defense Research and Development Organization (DRDO), New Delhi, India.
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Pawar, S.S., Shinde, K.P., Joshi, R.S. et al. Effect of PVA addition on formation of spray-deposited Sm0.5Sr0.5CoO3 thin films on CeO2 substrates. Ionics 16, 649–654 (2010). https://doi.org/10.1007/s11581-010-0445-y
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DOI: https://doi.org/10.1007/s11581-010-0445-y