Nwifior K . and Ifeanyichukwu B.J
Department of Physics,
Ebonyi State College of Education Ikwo ,
Ebonyi State, Nigeria
Department of Industrial Physics ,
Ebonyi State University, Abakaliki,
Ebonyi State, Nigeria.
Abstract.
Aluminum Zinc Sulphide (Al ZnS ) Ternary Thin Films were successfully grown on the substrates by2 4
Solution Growth Technique ( SGT ). The sources of Aluminum, Zinc and Sulphur ions are Aluminum
Chloride, Zinc Sulphate, ethylenediamine tetra acetic acid (EDTA), concentrated ammonia solution and
thiourea. The films were annealed at 300°C for 2 hours and characterized by UV-VIS-NIR Spectrophotometer in the wavelength range of 300nm-1000nm to determine the optical properties of the films. The optical transmittance was obtained directly by the Spectrophotometer. Other optical properties were determined by theoretical calculations. The average energy band gaps of the films grown at two different temperatures are 3.63 and 3.77eV for different dip times. The other optical properties have been reported. From the results, the wide direct energy band gap exhibited by the films reveals that the films are suitable materials as window layer in solar cells fabrication. The high transmittance exhibited by the films reveals that the films are promising material for the construction of roofs and walls poultry houses. This will provide the needed heat required for warming of young chicks and has the potential to reduce the cost of energy consumption associated with the use of electric bulbs, stoves and lambs which will produce the needed heat to warm young birds.
Key words: Aluminum, Transmittance, Band Gap, window Layer, Solar Cells, Thin Films.
Get the full content here: Journal