Synthesis of colloidal solution of β-LiGaO2 nanocrystals capped with organic surfactant

Kazuyuki Takahashi, Yasuhiro Maeda, Takashi Suehiro, Masao Kita, Takahisa Omata

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We studied a means of synthesizing colloidal nanocrystals (NCs) of β-LiGaO2, a wide-band gap semiconductor oxide, by reacting lithium hydroxide (LiOH) with gallium tri-iso-propoxide [Ga(OiPr)3] in benzylamine. This reaction yielded near-stoichiometric β-LiGaO2 NCs, 45 nm in diameter and capped with n-octylamine, which were highly dispersible in an organic solvent. We proposed that the LiOH and Ga(OiPr) 3 reacted via electrophilic attack of Li+ on the bridging oxygen of Ga(OiPr)3 and/or nucleophilic attack of OH- on the α-carbon of Ga(OiPr)3. This reaction formed LiOGa bonds and contributed to the nearstoichiometry of the resultant β-LiGaO2 NCs.

Original languageEnglish
Pages (from-to)195-197
Number of pages3
JournalJournal of the Ceramic Society of Japan
Issue number1423
Publication statusPublished - 2014 Mar
Externally publishedYes


  • Colloidal processing
  • Crystal growth
  • Nanocrystalline materials
  • Nanoparticles
  • Semiconductors

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry


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