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Bitenc, Marko; Podbršček, Peter; Crnjak Orel, Zorica; Cleveland, Michael A; Paramo, J. Antonio; Peters, Raul M; Strzhemechny, Yuri M
Crystal growth & design, 02/2009, Letnik: 9, Številka: 2Journal Article
ZnO nanorods were prepared at relatively low temperatures by homogeneous precipitation from zinc nitrate and urea in a water/ethylene glycol mixture. Crystal size and morphology are controlled by growth time and solvent composition. We observed a strong correlation between nanocrystals’ size/morphology and their optoelectronic defect-related properties. Smaller crystallites exhibited intense deep-defect luminescence and enhanced emission related to near-surface excitonic recombination. Longer growth times lead to formation of well-defined nanorods with hexagonal symmetry exhibiting reduced defect emission.
