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Journal of the Nigerian Association of Mathematical Physics

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Study of Optical, Solid State and Structural Properties of Nickel Sulphide (NiS) Thin Films Deposited using Solution Growth Technique.

DU Onah, EI Ugwu, SM Idenyi

Abstract


Thin films of Nickel sulphide (NiS) were successfully grown by using the solution growth technique which is cost effective and efficient. Nickel chloride (NiCl2), Sodium sulphate (Na2S2O3) and Ammonia NH3 were used. The optical and solid state properties were obtained from the characterisation done at University of Nigeria Nsukka using PYEUNICAM (SPG-450) spectrophotometer. Photomicrographs of the films showed that they are amorphous in structure. The films have 80% (high) transmittance in the visible/NIR regions of em-spectrum. The band gaps of the films determined when absorption coefficient is zero, ranges from 2.4eV to 2.8eV . These films can be used as window materials for solar cells

Keywords: Thin films, Nickel sulphide and solution growth.




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