Transition metal doped ZnO have been theoretically predicted to be ferromagnetic at room temperature. The solution phase synthesis of ZnO usually leads to very anisotropic structures like rods or platelets. We have studied the influence of reactive medium on the oriented growth both in surfactant and solvent directed syntheses. Then, the influence of doping/alloying on the morphology has been studied as a function of the chemical nature and amount of the transition metal (TM) element. Obviously, the results show a very strong effect of the TM on the morphology with sometimes exotic shapes like multipods formed under specific conditions. Nevertheless, the systems surprisingly exhibit a very sensitive variation of the physical properties (in that case magnetic) as a function of the reactive medium.

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