Growth of LiCoO2 Single Crystals by the TSFZ Method

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Contributors

  • Shigenobu Nakamura - , University of Yamanashi (Author)
  • Andrey Maljuk - , University of Yamanashi, Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • Yuki Maruyama - , University of Yamanashi (Author)
  • Masanori Nagao - , University of Yamanashi (Author)
  • Satoshi Watauchi - , University of Yamanashi (Author)
  • Takeshi Hayashi - , Oxide Corporation (Author)
  • Yutaka Anzai - , Oxide Corporation (Author)
  • Yasunori Furukawa - , Oxide Corporation (Author)
  • Chris D. Ling - , Leibniz Institute for Solid State and Materials Research Dresden, University of Sydney (Author)
  • Guochu Deng - , Australian Nuclear Science and Technology Organisation (Author)
  • Maxim Avdeev - , Australian Nuclear Science and Technology Organisation (Author)
  • Bernd Büchner - , Chair of Experimental Solid State Physics, Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • Isao Tanaka - , University of Yamanashi (Author)

Abstract

We have grown LiCoO2 single crystals by the traveling solvent floating zone (TSFZ) growth with Li-rich solvent, having observed the incongruent melting behavior of LiCoO2 between 1100 and 1300 °C. The optimum growth conditions in terms of atmosphere and solvent composition were determined to be Ar flow and an atomic ratio Li/Co 85:15, respectively. The crystals grown using a conventional-mirror-type furnace contained periodic inclusions of a Co-O phase due to the influence of Co-O phase segregation on the stability of the molten zone during growth. By using a tilted-mirror FZ furnace, inclusion-free LiCoO2 crystals of about 5 mm in diameter and 70 mm long were obtained at a tilting angle Î = 10°. The grown crystals were confirmed to be single-domain by neutron Laue diffraction.

Details

Original languageEnglish
Pages (from-to)415-420
Number of pages6
JournalCrystal Growth and Design
Volume19
Issue number1
Publication statusPublished - 2 Jan 2019
Peer-reviewedYes

Keywords

ASJC Scopus subject areas