| Abstract
| - Nanocrystals of the wide band gap semiconductor zinc oxide of controllable morphologies were synthesizedby a simple thermal decomposition method. The predominating factor in determining the morphology (spheres,triangular prisms, and rods) was the solvent, selected on the basis of coordinating power. The nanoparticleswere structurally analyzed, and the photoluminescence of each shape was compared. The intensity of thegreen band emission, common to many ZnO structures, was found to vary with morphology. The strongestgreen band intensity corresponded to the shape with the largest surface/volume ratio and could be attributedto surface oxygen vacancies. Control over the morphology of ZnO at the nanoscale is presented as a meansto control the green band emission.
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