Themetal-organicchemicalvapordeposition(MOCVD)techniqueisapromisingprocessforhigh-temperaturesuperconductorYBa2Cu3O7-δ(YBCO)preparation.Inthistechnique,itisachallengetoobtainbariumprecursorswithhighvolatility.Inaddition,thepurity,evaporationcharacteristicsandthermostabilityofadoptedprecursorsinthewholeprocesswoulddecidethequalityandreproducibleresultsofYBCOfilm.Inthepresentreport,thebariumprecursorcontaining2,2,6,6-tetramethylheptane-3,5-dionate...
