Ambient pressure syntheses of size-controlled corundum-type In 2O3 nanocubes

Chang Hoon Lee, Minsik Kim, Taekhoon Kim, Ansoon Kim, Jungsun Paek, Ju Wook Lee, Sung Yool Choi, Kyuwon Kim, Jong Bong Park, Kwangyeol Lee

Research output: Contribution to journalArticlepeer-review

189 Citations (Scopus)


Hydrolysis of In(O-iPr)3 by 10 molar excess of water at 90 °C in a surfactant/solvent mixture of oleylamine/oleic acid/trioctylamine provides very small nanoparticles (<5 nm in diameter) of In(O)(OH). Subsequent in situ thermolysis of the formed In(O)(OH) nanoparticles at 350 °C and ambient pressure produces monodisperse h-In2O3 nanocubes, which can form an extended two-dimensional array on a flat surface. The size of the In2O3 nanocubes (8, 10, and 12 nm) could be easily controlled by the simple change in the amounts of employed surfactants. The h-In2O3 nanocube samples show blue PL emissions at room temperature due to, presumably, systematic oxygen vacancy.

Original languageEnglish
Pages (from-to)9326-9327
Number of pages2
JournalJournal of the American Chemical Society
Issue number29
Publication statusPublished - 2006 Jul 26

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry


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