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High concentrations of defects are introduced into nanoscale ZnO through non‐equilibrium processes and resultant blue emissions are comprehensively analyzed, focusing on defect origins and broad controls. Some ZnO nanoparticles exhibit very strong blue emissions, the intensity of which first increase and then decrease with annealing. These visible emissions exhibit strong and interesting excitation...
The morphology and photoluminescence of ZnO nanostructures formed by laser ablation in water were found to be susceptible to the applied laser power. The products varied from nanoflakes to nanoparticles, then to short nanorods with the increase of laser power. Correspondingly, the relative intensity of violet emission decreased and that of green emission increased. The morphology formation mechanism...
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