Study Optical and Structure Properties of Nano ZnO/Cu₂O Mixture Prepared by Pulsed Laser Deposition for Application

Abstract:

Nd:YAG laser was used at different number of shots (300, 500, and 700 pulse) to prepare ZnO:Cu₂O nanoparticles at mixing ratios of (0.5, 0.7 and 0.9). The optical, structural, morphological and electrical properties of the prepared films were investigated. The energy band gap was found to be (2.5, 3.2 and 3.53 e.v). The crystalline structure showed no impurity peaks indicating that the final product was free from surface impurities. Also, the materials peaks and intensity is present and well identified as the mixing ratio varies. The AFM results for all ratios indicate that as the number of pulses increase, the higher the resulted grain size. The average grain size was between (58.82 nm) to (95.75nm). The J-V characteristics were measured for the prepared solar cells and it was found that the efficiency varied with the mixing ratio and film thickness from 0.29% to 2.38%. F.F varied from 0.28 to 0.25.

• Periodical: Defect and Diffusion Forum (Volume 398)
• Pages: 1-7
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.398.1
• Online since: January 2020
• Authors: Ayad Z. Mohammad*
• Keywords: Cu₂O, PS, Pulsed Laser Deposition, Solar Cell, ZnO

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