Abstract
Chromium sesquioxide (Cr2O3) nanostructures, assisted by various ionic surfactants such as sodium dodecyl sulfate (SDS), poly ethylene glycol (PEG) and cetyl trimethyl ammonium bromide (CTAB), were successfully achieved by the facile precipitation method with the average particle size of 35.05, 38.12 and 40.28nm, respectively. The sheet, spherical and plate-like nanostructures were confirmed by SEM studies and a possible growth mechanism of the nanostructures were proposed. The increasing trends of the band gap energy confirm the quantum confinement effect for the prepared samples. The strong UV and weak visible emissions in photoluminescence indicate the high purity and perfect crystallinity of the prepared samples.
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