Structural and nonlinear-optical properties of sprayed deposited Zr-Li codoped ZnO thin films

摘要

(Zr -Li) codoped ZnO thin films were grown on heated glass substrates at 450°C by reactive chemical pulverization spray pyrolysis technique. The effect of lithium on the structural, morphological and the nonlinear optical properties of ZnO:Zr thin films was investigated. The X-ray diffraction patterns reveal that the ZnO:(Zr-Li) thin films are polycrystalline in nature, fitting well with a hegxagonal wurtzite structure, and showing the (002) planes as preferential growth in all deposited films. The surface morphology is dependent on the lithium concentration. A decrease, in the nonlinear response of ZnO: (Zr-Li) thin films, was observed comparing with Zr doped ZnO. The susceptibility value χ⁽³⁾ of codoped films has the same order as undoped films.