Behavior of zinc oxide nanoparticles in pulsed-laser deposition

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Crystalline and c-axis oriented zinc oxide (ZnO) films with grain structure were deposited on sapphire substrates by pulsed-laser deposition (PLD) technique. The deposited films had cut off at about 390 nm. Photoluminescence (PL) was observed with excitation at 355 nm by third harmonic wave of Nd:YAG laser. In addition, the behaviors of the nanoparticles condensing in the gas phase of PLD were observed by imaging and spectroscopic methods of ultra-violet Rayleigh scattering (UV-RS) and laser-induced incandescence (LII).

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