Abstract
ZnO nanoparticles were synthesized by the electrochemical method. The samples were synthesized at different electrochemical conditions, i.e. time and the voltages. The different topologies were obtained. The photo induced piezoelectricity was studied during illumination by the 10 ns nitrogen laser at wavelength 371 nm. The strong dependence on the topology was observed. Crystallochemical aspects of the observed IV-laser piezoelectricity is discussed.