Influence of Thickness on the Optical Properties of Cadmium Sulphide Thin Film Deposited by Chemical Bath Deposition Technique
Journal Title: Physical Science International Journal - Year 2017, Vol 16, Issue 1
Abstract
Cadmium Sulphide (CdS) thin films were deposited onto glass substrates by chemical bath deposition (CBD) technique from a bath containing Cadmium acetate, ammonium acetate, thiourea and ammonium hydroxide and the bath was maintained at 90℃ using 78H – 1 hot plate magnetic stirrer. The CdS thin films were deposited simultaneously at different dip times of (10, 20, 30, 40, 50, and 60) minutes to achieve different film thickness of (14.13, 17.61, 18.20, 20.84, 25.93 and 27.21) nm respectively in order to investigate the influence of the thickness on the optical properties of the films. The optical absorbance was measured directly using Single – Beam Helios Omega UV – VIS spectrophotometer in the wavelength range of (280 – 920) nm. Other optical parameters which include; transmittance, reflectance, refractive index, extinction coefficient, and the optical band gap were calculated using the optical absorbance data. Results of the study show that the optical properties of the CdS thin film were largely influenced by the thickness of the films.
Authors and Affiliations
O. Okorie, A. D. A. Buba, A. M. Ramalan
Semi Empirical Model of Global Warming Including Cosmic Forces, Greenhouse Gases, and Volcanic Eruptions
In this paper, the author describes a semi empirical climate model (SECM) including the major forces which have impacts on the global warming namely Greenhouse Gases (GHG), the Total Solar Irradiance (TSI), the Astronomi...
Filter Design and Applications in Image Improvement
This work presents the performance analysis of different basic techniques used for the image restoration. Restoration is a process by which an image suffering from degradation can be recovered to its original form. Remov...
Elemental Characterization and Source Identification of Fine Particulate Matter (PM2.5) in an Industrial Area of Lagos State, Nigeria
Fine particles (PM2.5) are mainly generated by combustion processes including emissions from motor vehicles, combustion of fossil fuel for power generation and large industrial processes such as ore and metal smelting. T...
Realization and Implementation of Polynomial Chaotic Sun System
In this study, the circuit realization and its corresponding implementation by means of analog components is presented for a new chaotic system. In particular, the polynomial chaotic Sun system, which has 12 terms, twelv...
Effects of MHD Thermal Radiation and Heat Source of Viscous Flow over a Nonlinearly Stretching Sheet with Viscous Dissipation
This investigation is undertaken to study effects of MHD thermal radiation and heat source of viscous flow over a nonlinearly stretching sheet with viscous dissipation. The governing equations of the problem are transfor...