Microstructural and Electrochemical Properties of rf-Sputtered LiFeO2Thin Films | Zendy

P. Rosaiah | Zendy; O. M. Hussain | Zendy

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Microstructural and Electrochemical Properties of rf-Sputtered LiFeO₂Thin Films

Author(s) -

P. Rosaiah,

O. M. Hussain

Publication year - 2014

Publication title -

journal of nanoscience

Language(s) - English

Resource type - Journals

eISSN - 2356-749X

pISSN - 2314-6931

DOI - 10.1155/2014/173845

Subject(s) - materials science , annealing (glass) , algorithm , analytical chemistry (journal) , chemistry , computer science , metallurgy , chromatography

Lithium iron oxide (LiFeO2) thin films have been deposited by rf-magnetron sputtering technique and microstructural and electrochemical properties were studied. The films deposited at a substrate temperature 250°C with subsequent post annealing at 500°C for 4 h exhibited cubic rock-salt structure with Fm3m space group. The films exhibited well-defined oxidation and reduction peaks suggesting complete reversibility upon cycling. The as-deposited films exhibited an initial discharge capacity 15 μAh/cm2·μm, whereas the films post annealed at 500°C for 4 h in controlled oxygen environment exhibited 31 μAh/cm2·μm

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