Cyclic Voltammetry Analysis Of HgSSe Thin Films

Ho, Jing Wen (2015) Cyclic Voltammetry Analysis Of HgSSe Thin Films. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 pages) Cyclic Voltammetry Analysis Of HgSSe Thin Films 24 Pages.pdf - Submitted Version Download (439kB)

Abstract

Thin film technology is one of the most developing technologies nowadays that involves in the development of solar cell. Ternary Transition Metal Chalcogenides (TMCs) are semiconductors which can be used as an efficient photovoltaic material. These materials have covered many areas of technological interest due to its outstanding properties. This research intent to predict safe, non-toxic, cost-efficient and relative simple method for synthesize of ternary transition metal chalcogenide thin films. Among the Ternary TMCs, Mercury Sulphoselenide, HgSSe is one of the materials that can be applied in thin film technology. The objectives of this project are to determine the deposition potential using cyclic voltammetry analysis, synthesize the HgSSe thin film via electrodeposition technique and characterize the structural and morphological properties. Mercury sulphoselenide, HgSSe thin films were successfully electrodeposited on stainless steel substrates with deposition time of 30 minutes. Cyclic voltammetry analysis confirmed the reduction range of HgSSe occurred between -1.3V to -1.8V. Films were observed by optical microscope found to be well adherent to the substrates and grew up to thickness of 1.22μm. Structural analysis via X-ray Diffraction (XRD) analysis reveals that the films are polycrystalline with increasing intensity of XRD peaks in thicker films. ( 2 2 0 ) plane for HgSe2, ( 2 0 0 ) plane for HgS2, and ( 0 1 3 ) plane for HgSSe were observed to be the most preferred orientation as they were the highest peak in the spectrum. The surface morphology of the films determined by scanning electron microscope (SEM) showed that the growth of the films were uniform and well adhered for thinner films. At the potential of -1.5V, HgSSe films showed the most optimum potential to be used for electrodeposition.

Actions (login required)

View Item