Studies on pulse electrodeposition of high Tc superconducting Hg-1212 thin films

Synthesis of single-phase HgBa2Ca2Cu3O8+ high-Tcsuperconducting films using the multistep electrolytic process

“…It is seen that the cell current suddenly increased after -1.7 V vs. SCE and no other individual reduction peak is evidenced, which indicate that the complexing bath is formed and all constituents (Ba 2+ , Ca 2+ and Cu 2+ ) reduct simultaneously after this potential. This is similar to the deposition of HgBaCaCu [9] because Ba, Ca and Cu have higher individual deposition potentials than Hg and hence there is no considerable difference in resultant deposition potential.…”

“…The electrodeposition is the most promising technique for thin film deposition, where the reaction takes place on the atomic level and has good control over the stoichiometry. It works at room temperature and is demonstrated earlier by us for the fabrication of Hg-1212 film by co-deposition route [9]. When these Hg-1212 thin films were annealed, we have observed the formation of about 10 % of Hg-1223 phase.…”

Studies on photoinduced effects in pulse-electrodeposited Ag/Hg-1212/CdSe hetero-nanostructures

“…The Hg-1212 superconducting thin films deposited by pulse-electrodeposition show superconductivity at 104.7 K [14]. The fabrication of Ag/Hg-1212/CdSe heterojunctions by pulse-electrodeposition technique and photoinduced effects on its I -V characteristics are reported elsewhere [15].…”

Cycle life improvement of alkaline batteries via optimization of pulse current deposition of manganese dioxide under low bath temperatures

“…Hence, the measured individual effects of each pulse parameter must be regarded as an approximate data in order to find the optimum condition. In general, this condition is given when t off ≥ discharging time of the electrical double layer [21]. The off duration should also be as long as necessary to allow ion transport into the depleted vicinity of the electrode surface.…”

“…Consequently, under low nucleation rate conditions, the grain size increased due to mass transfer limitations. In addition, high η a has a strong influence on oxygen evolution reaction and microstructures of the anodically deposited oxide materials resulting in formation of crystal defects [21].…”