Effect of deposition condition on structure and morphology of pulsed-laser deposited LiCoO2 films

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal

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Author(s)

Detail(s)

Original languageEnglish
Journal / PublicationGongneng Cailiao/Journal of Functional Materials
Volume38
Issue number12
Publication statusPublished - Dec 2007

Abstract

In this work, pulsed laser deposition (PLD) was used to grow LiCoO2 films and the effect of the deposition conditions, on the structure and morphology of LiCoO2 films was investigated. The results showed that the surface roughness of LiCoO2 films can be reduced by decreasing the laser power to a certain degree and the crystallinity of LiCoO2 films can be improved by elevating the annealing temperature and increasing the oxygen pressure although layered LiCoO2 films can be obtained by in-situ annealing at as low as 400°C. The LiCoO2 films under the optimized deposition condition have good electrochemnical reversibility with an initial discharge capacity of 36μAh/(μim·cm) and a cycling efficiency of 94.44%.

Research Area(s)

  • Cathode, LiCoO2, Pulsed laser deposition, Thin film micro-battery