高分子前駆体溶液のスピンコーティングによる多孔質La_<0.6>Sr_<0.4>Co_<0.2>Fe_<0.8>O_3基板上へのYSZ電解質薄膜の作製及びその電気特性

概要

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Deposition of dense 8 mol% Y_2O_3-stabilized ZrO_2 (YSZ) electrolyte thin-films with and without Ce_<0.9>Gd_<0.1>O_<1.95> (CGO) interlayer by spin coating of polymeric precursor solutions on a porous La_<0.6>Sr_<0.4>Co_<0.2> Fe_<0.8>O_3 (LSCF) substrate and the electrical properties of the constructed thin-film cell were investigated. Anisotropic crystal growth in the YSZ thin films annealed at 1150℃ was confirmed by XRD and SEM. The high-temperature chemical reaction between YSZ and LSCF was depressed by coating a CGO interlayer on the porous LSCF substrate before coating YSZ thin film. The impedance measurements of the electrochemical cell constructed by the LSCF electrode-supported YSZ thin-film electrolyte with CGO interlayer showed a lower electrode reaction resistance.
社団法人日本セラミックス協会の論文
2002-08-01