An alternative approach for the oriented growth of ZnO nanostructures

An original two-step process was developed to control the oriented growth of ZnO films on SiO2 substrates. This process combines a chemical bath deposition technique for the seeding and nucleation site generation of self-assembled nanorods and the pyrosol process for the oriented growth of high-crystalline quality ZnO films. Both preferred out-of-plane orientation along the polar < 0001> direction and crystallinity can be enhanced on seed layers. In addition, denser internal structures can be achieved.