title: Ambient pressure syntheses of size-controlled corundum-type In2O3 nanocubes.
abstract: Hydrolysis of In(O-iPr)3 by 10 molar excess of water at 90 degrees 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 degrees 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.
authors.affiliation: Department of Chemistry and Center for Electro- and Photo-Responsive Molecules, Korea University, Seoul, Korea 136-701.
authors.forename: Chang Hoon
authors.initials: CH
authors.lastname: Lee
authors.forename: Minsik
authors.initials: M
authors.lastname: Kim
authors.forename: Taekhoon
authors.initials: T
authors.lastname: Kim
authors.forename: Ansoon
authors.initials: A
authors.lastname: Kim
authors.forename: Jungsun
authors.initials: J
authors.lastname: Paek
authors.forename: Ju Wook
authors.initials: JW
authors.lastname: Lee
authors.forename: Sung-Yool
authors.initials: SY
authors.lastname: Choi
authors.forename: Kyuwon
authors.initials: K
authors.lastname: Kim
authors.forename: Jong-Bong
authors.initials: JB
authors.lastname: Park
authors.forename: Kwangyeol
authors.initials: K
authors.lastname: Lee