Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : YAG

Structural and DC Electrical Properties of (CuI ) Thin Film Prepared by Pulse Laser Deposition

Mohamed K. Dhahir; Asmaa J. Kadhim; Wasan. J. Taher

Engineering and Technology Journal, 2016, Volume 34, Issue 4, Pages 512-520

In this paper , Copper(I) Iodide (CuI)thin films were prepared by Pulsed Laser Deposition (PLD).The effect of different No. oflaser pulse (200,500 and 800) on the structural and electrical properties were studied.The structure of all CuIfilms istested using X-ray diffraction (XRD) the results were found to be polycrystalline of hexagonal structure with strong crystalline orientation at (111)plane.D.C measurements revealed that the electrical activation energy (Ea) decreases with increasing of pulse shootof thin films. The Hall effect measurements confirmed that the CuI are P-type and the charge carriers concentration (n) were increased with increasing of pulse shoots .Also, it can observe that Hall mobility (H) decreases with the increasing of pulse shoot for films.

Preparation of Silver Nanoparticles by Pulsed Laser Ablation in Liquid Medium

Abdulrahman Khalaf Ali; Dayah N. Raouf

Engineering and Technology Journal, 2011, Volume 29, Issue 15, Pages 3058-3066

Silver nanoparticles were synthesized by pulsed laser ablation (Q-switched Nd:YAG, ë=1064nm, 10 ns pulse duration and E=100-900 mJ) of pure Ag metal plate immersed in double distilled and deionised water DDDW. Spectral measurements, such as surface plasmon extinction SPE spectra of the produced nanoparticles solution were measured. The size and concentrations measurements of produced nanoparticles were estimated. UV-VIS absorption spectra of produced solution show a sharp peak around 400 nm, indicating the produced Ag nanoparticles with a narrow size ranging from 5 to 50 nm with almost spherical shape.