Crystal orientation of epitaxial LiCoO2 films grown on SrTiO3 substrates

Kazunori Nishio, Tsuyoshi Ohnishi, Kosho Akatsuka, Kazunori Takada

    Research output: Contribution to journalArticlepeer-review

    27 Citations (Scopus)

    Abstract

    LiCoO2 (LCO) thin films are epitaxially grown on (100), (110) and (111) 0.5 wt% Nb-doped SrTiO3 (Nb:STO) substrates by pulsed laser deposition and their crystalline orientation relationship investigated via X-ray pole figure measurement. This investigation reveals that the LCO films grown on Nb:STO (100) and (110) have a cube-on-cube orientation relationship with the substrates to be (104)- and (018)-oriented, respectively, while the relationship is accompanied with 60 in-plane rotation on (111) Nb:STO to yield a predominantly (001)-oriented LCO film. The (104)-oriented LCO film on (100) Nb:STO substrate exhibits high rate capability up to 100 C.

    Original languageEnglish
    Pages (from-to)687-691
    Number of pages5
    JournalJournal of Power Sources
    Volume247
    DOIs
    Publication statusPublished - 2014

    Keywords

    • All-solid-state battery
    • Epitaxial thin film
    • LiCoO
    • Pulsed laser deposition
    • X-ray pole figure measurement

    ASJC Scopus subject areas

    • Renewable Energy, Sustainability and the Environment
    • Energy Engineering and Power Technology
    • Physical and Theoretical Chemistry
    • Electrical and Electronic Engineering

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