Influence of Deposition Potential on Lead Sulphide (PbS) Thin Film Using Electrodeposition Technique
Journal Title: Asian Journal of Chemical Sciences - Year 2017, Vol 3, Issue 4
Abstract
This current paper studied the effect of variations in deposition voltage on lead sulphide (PbS) thin film, using electrodeposition technique, with zinc plate as the substrate. The result showed an inverse relationship between voltage and the thickness of the film. An inverse relationship between film’s thickness and its resistivity was also obvious. For given values of voltage, the dependence of absorbance, transmittance, and reflectance of the film on the wavelength of the incident radiation was observed. The absorbance and reflectance were found to exhibit an inverse relationship with the wavelength. However, the transmitter was observed to increase as the wavelength is increased. The highest transmittance of 0.716% in the infrared region at the wavelength of 300 nm was recorded for all samples deposited at 1V. In the ultraviolet region, a transmittance of 0.946% at an incident wavelength of 1500 nm for all samples deposited at 5V was recorded. From the result analysis, it was observed that the reflection index, optical conductivity, extinction coefficient, real dielectric constant, and imaginary dielectric constant increased as the photon energy. The observe energy band gap of 1.7eV-2.4eV shows that PbS is a good material for solar cells fabrication.
Authors and Affiliations
Ikhioya, I. Lucky, Ehika, Simon, Ijabor, B. Okeoghene
Keywords
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- EP ID EP338879
- DOI 10.9734/AJOCS/2017/40415
- Views 54
- Downloads 0
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