Spin-coated ZnO thin films using ZnO nano-colloid

Using ZnO nano-colloids, thin films of ZnO have been deposited and characterized. The nano-colloid has been synthesized using a top-down wet chemistry method starting from submicron ZnO particles. The steric stabilization technique is implemented using stearic acid as a capping agent to prevent agglomeration of the ZnO nanoparticles. A stable suspension is achieved, exhibiting strong optical absorbance and a band edge at 376 nm. The simple chemistry enables a uniform film on a variety of substrates using spin coating. Current-voltage (I-V) measurements of ZnO films deposited on quartz after annealing treatment show a resistivity of 1.89 × 10^sup 5^ ohm . cm. [PUBLICATION ABSTRACT]