Bi2Sr2CaCu2O8+x films prepared by fluorinated precursors in dry ambient


Bi2Sr2CaCu2O8+x films were prepared by mixing 2-ethylhexanoate precursors with heptafluorobutyric acid and annealing at 820 °C in dry ambient. The films underwent substantial mass transport and exhibited abnormal grain growth, indicating that some liquid phases might be involved in the process. It was found that the high atomic mobilities during annealing significantly improved in-plane orientations and consequently increased critical current densities.

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Hung, L.S. Bi2Sr2CaCu2O8+x films prepared by fluorinated precursors in dry ambient. Journal of Materials Research 7, 2956–2961 (1992).

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