Aging effects and passivation studies on undoped and Ag-doped YBa[sub 2]Cu[sub 3]O[sub 7[minus]x] laser ablated thin films

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · Journal of the Electrochemical Society; (United States)

DOI:https://doi.org/10.1149/1.2054970· OSTI ID:7148982

Kumar, D; Sharon, M ^[1]; Apte, P R; Pinto, R; Gupta, L C ^[2]

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1. Indian Inst. of Tech., Bombay (India). Dept. of Chemistry
2. Tata Inst. of Fundamental Research, Bombay (India)

The authors have examined the chemical stability of undoped and 5 weight percent Ag-doped YBa[sub 2]Cu[sub 3]O[sub 7[minus]x] thin films, both grown in situ by pulsed laser deposition technique. The studies indicate that Ag-doped films are more stable than undoped films. The improved chemical stability of Ag-doped films has been attributed to reduction in the effective area of intergranular regions and the presence of passivating silver clusters around grains. The study has also shown that coating the YBa[sub 2]Cu[sub 3]O[sub 7[minus]x] film surface with noble metals like Ag and Au results in passivation of YBa[sub 2]Cu[sub 3]O[sub 7[minus]x] films.

• OSTI ID: 7148982
• Journal Information: Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 141:6; ISSN JESOAN; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360205* -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DEPOSITION
DOPED MATERIALS
ELEMENTS
FILMS
HIGH-TC SUPERCONDUCTORS
MATERIALS
METALS
OXIDES
OXYGEN COMPOUNDS
PASSIVATION
SILVER
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
SURFACE COATING
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES