Open AccessEFFECT OF LASER SHOTS ON THE OPTICAL PROPERTIES OF FE2O3: CUO THIN FILMS PREPARED BY PULSE LASER DEPOSITION TECHNIQUE
Author(s) -
Nadia NAEEMA,
Hanaa E. JASIM,
Ahmed Shaker HUSSEIN
Publication year - 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.47832/minarcongress3-10
Subject(s) - pulsed laser deposition , materials science , laser , molar absorptivity , thin film , transmittance , band gap , optics , dielectric , refractive index , optoelectronics , pulse duration , doping , nanotechnology , physics
CuO-doped Fe2O3 thin films were deposited onto glass substrates using the Pulsed Laser Deposition (PLD) process at room temperature and a vacuum of 10-2 mbar, utilizing a Nd:YAG laser with a wavelength of 1064 nm, an average frequency of 6 Hz, and a pulse duration of 10 at various laser pulses (300,400 and 500 and).The effect of number of pulsed laser shots on the optical properties of the films was invesigated. UV-VIS spectrophotometer mentioned that the transmittance increases to 90 % when decresing the number of the laser shots. Furthermore, The optical measurements indicate that the Fe2O3:CuO films have a direct Egopt that diminishes as the number of laser pulses increases. The band gap energy of the Fe2O3:CuO found was 3.01 eV. This value was reduced significantly to 3.0 by increasing the number of laser blasts. However, optical constants such as the refractive index (n), the extinction coefficient (k), and the dielectric constant (r, I rise in a predictable manner as the number of laser flashes increases. Key words: CuO –doped Fe2O3; PLD technique ; Thin Film; Optical Properties; Band Gap.