Silver- and copper-doped ZnO ﬁlms were prepared by radio-frequency(RF)-magnetron sputtering on glass and quartz substrates. The inﬂuence of dopants content on the microstructural evolution and optical as well as nonlinear optical (NLO) properties were investigated. It has been found that the grain sizes were enlarged with increasing of Ag, Cu dopants amount in ZnO ﬁlms. The Ag or Cu doping leads to the optical band gap narrowing. Besides, the second-order NLO response of Ag- and Cu-doped ZnO ﬁlms is lower than that of undoped ZnO ﬁlm. The second harmonic generation (SHG) efﬁciency of the ZnO:Ag ﬁlm wasfound to be higher than that of the ZnO:Cu ﬁlm at the similar concentration of dopant. In addition, the decrease of the third harmonic generation (THG) response is observed in ZnO ﬁlms with increasing of Ag ﬁlm or Cu dopant amount.
|Numero di pagine||7|
|Rivista||Journal of Alloys and Compounds|
|Stato di pubblicazione||Published - 2009|
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