Size-controllable growth of single crystal In(OH)(3) and In2O3 nanocubes

Single crystal In(OH)(3) nanocubes were synthesized by a designed novel hydrothermal treatment, and the size can be simply moderated by varying the hydrothermal temperature. By calcining the In(OH)(3) nanocubes in air at 400 degreesC, single crystal In2O3 nanocubes were also prepared with the size slightly shrinking. Room temperature photoluminescence showed a broad photoluminescence emission spectrum in the blue-green region with its maximum intensity centered at 450 nm, which was mainly attributed to the effect of the oxygen deficiencies.