Electrosynthesised NiSe2 Thin Films For Photoelectrochemical (PEC) Applications

Mohd Zaidan, Abdul Aziz (2012) Electrosynthesised NiSe2 Thin Films For Photoelectrochemical (PEC) Applications. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Thin film technology is one of the developing technologies nowadays that involves the development in photovoltaic cell. Nickel selenide, NiSe2 is one of the materials involving in thin film technology. This report elaborates the photoelectrochemical technology that utilises electrosynthesised nickel selenide, NiSe2 semiconductor as the absorbent material. Containing the overview regarding the synthesis of newly developed nickel selenide thin film, background and applications of photoelectrochemical or solar cell, this fmal year project also explains in details the methodology in producing such semiconductor material from the raw materials. Electrodeposition technique is a preferred method to produce nickel selenide thin fllm due to its advantages such as the possibility of large scale production, minimum waste of components, easy monitoring of deposition process and large area deposition. The samples were deposited within three deposition times namely 20, 25 and 25 minutes with respect to the potentials acquired from cyclic voltammetry. Upon obtaining the result, the analysis was done, involving thin film thickness measurements by gravimetric weight difference method, structural studies by X-ray diffractometer (XRD), optical studies by UV-Vis spectrometer, morphological and compositional analyses by scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDX) as well as Matt-Schottky plot by LCR (inductance (L), capacitance (C) and resistance (R)) meter to study the semiconducting nature of deposited thin film.

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