Fabrication and characterization of ZnO/Si Heterojunction by Laser Ablation for Solar Cell Application

Ban Ali

Abstract


Nanoparticles of semiconductor material have get more interest due to their desirable properties and applications in different areas. In this study Zinc Oxide Nanoparticles (ZnO NPs) were synthesized using laser ablation in water by applying (1600 pulses) of Nd- YAG laser ( λ = 1064 nm ) . The crystal structure morphology of synthesized ZnO NPs were investigated using X-Ray diffraction, atomic force microscope (AFM) , optical microscope image , and optical properties characterized using UV-VIS as well as FTIR spectroscopy . The investigation revealed high purity of the ZnO NPs thin film prepared with a regular and homogeneous semi-spherical shape nanoparticles distribution on the substrate surface with size around 50nm. The optical properties shows energy band gap (1.5 and 4) eV respectively. I-V characteristics have been studied for the heterojunction structure of (Ag/ZnO/Si/Al) indicates that this heterojunc-tion could be used as a solar cell with efficiency about 10.9%.

Keywords


ZnO, Laser Ablation, XRD, AFM, Optical Properties.

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DOI: http://dx.doi.org/10.23851/mjs.v30i2.594

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