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Thin films of undoped and Al- and Ag-doped ZnO thin films have been obtained by spray pyrolysis deposition. The optimised parameters of deposition for the thin films to be used in optoelectronic applications are presented in the paper. The addition of low amounts of Al and Ag ions influences the film crystallinity and morphology. Based on the experimental results it is concluded that aluminium and silver act as dopants and reduce the band gap value of the host oxide, ZnO.
Semiconductor Conference, 2008. CAS 2008. International (Volume:2 )
Date of Conference: 13-15 Oct. 2008