RT - Journal Article T1 - Optical and Structural Properties of Cu/Cu2O and CuO NPs Synthesized by Ce:Nd:YAG Pulsed Laser Ablation JF - opsi YR - 2018 JO - opsi VO - 24 IS - 0 UR - http://opsi.ir/article-1-1486-en.html SP - 277 EP - 280 K1 - Pulsed laser ablation K1 - Ce:Nd:YAG K1 - Copper / Copper Oxide (1) NPs K1 - Copper Oxide (II) AB - In this paper, copper / copper oxide (I) NPs have been fabricated by Ce:Nd:YAG pulsed laser ablation method and then the prepared NPs converted to copper oxide (II) NPs by heating in the presence of oxygen. Target type, ablation medium and laser parameters can have impact on the structure of the final synthesized NPs. A copper sheet (with 99.98% purity) was stabilized in deionized (DI) water and exposed to the fundamental harmonic pulse radiation of Ce:Nd -YAG laser operating at 1064 nm wavelength with the pulse width of 8 ns and a repetition rate of 10 Hz. In this study, the results show that 1064 nm laser radiation is a convenient and flexible method for the preparation of copper / copper oxide (I) NPs in DI water. Heating technique is a simple way to convert these types of NPs to copper oxide (I). The synthesized NPs were characterized by UV-Visible absorption, X-ray diffraction (XRD) and scanning electron microscopy SEM. The energy band gap of the nanoparticle was also determined .SEM analysis reveals that NPs have an average size of 45 nm. UV-Visible absorption spectra and XRD patterns confirm the formation of Cu / Cu2O NPs and CuO NPs in the sample. LA eng UL http://opsi.ir/article-1-1486-en.html M3 ER -