Open Access
Effect of Laser Irradiation on the Optical Properties of SnO2 films Deposited by Post Oxidation of metal Films
Author(s) -
Najwa J. Jubier,
Majida A. Ameen,
Souad G. Khalil
Publication year - 2011
Publication title -
mağallaẗ baġdād li-l-ʿulūm
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.167
H-Index - 6
eISSN - 2411-7986
pISSN - 2078-8665
DOI - 10.21123/bsj.8.4.962-967
Subject(s) - materials science , transmittance , refractive index , absorption edge , substrate (aquarium) , irradiation , absorption (acoustics) , band gap , laser , metal , optics , wavelength , thin film , optoelectronics , visible spectrum , analytical chemistry (journal) , chemistry , nanotechnology , metallurgy , composite material , oceanography , physics , chromatography , nuclear physics , geology
Tin oxide films (SnO2) of thickness (1 ?m) are prepared on glass substrate by post oxidation of metal films technique. Films were irradiated with Nd:YAG double frequency laser of wavelength (532 nm) pulses of three energies (100, 500, 1000) mJ. The optical absorption, transmission, reflectance, refractive index and optical conductivity of these films are investigated in the UV-Vis region (200-900) nm. It was found that the average transmittance of the films is around (80%) at wavelength (550 nm) and showed high transmission (? 90 %) in the visible and near infrared region. The absorption edge shifts towards higher energies, which is due to the Moss-Burstien effect and it lies at (4 eV). The optical band gap increased with increasing of energy.