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Investigation of the Structural Characteristics of Cadmium Oxide Nanoparticles Synthesised by Laser Ablation

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Abstract:

Laser ablation in an aqueous solution is a prominent technique for synthesizing metal nanoparticles (NPs). These tiny particles possess distinct physical properties that make them suitable for various applications. This research used the Nd: YAG laser with varying laser energies (300-500) mJ at the number of fixed laser pulses 100 to synthesize cadmium oxide nanoparticles (CdO NPs) through laser ablation. Studying the optical properties and characterization of the synthesized CdO NPs was a fascinating endeavor. Increasing the laser power increased the measured energy gap (Eg) from 2.15 to 2.67 eV. X-ray diffraction (XRD) examination showed that the intensity of the resulting spectrum rises as the laser energy increases. Additionally, the particle size of cadmium oxide nanoparticles (CdO NPs) decreases gradually with higher laser energy. At an energy of 300 mJ, the CdO NPs measured 63.524 nm, then reduced to 32.438 nm when the laser energy was increased to 500 mJ. There is a strong correlation between the size of the NPs and the laser energy. Field emission Scanning electron microscopy (FE-SEM) revealed the formation of CdO NPs with a uniform, semi-spherical shape. The CdO NPs exhibited a consistent topography and ranged in size from 25 to 80 nm.

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Journal of Nano Research Vol. 87 View Preview

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Periodical:

Journal of Nano Research (Volume 87)

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65-73

DOI:

https://doi.org/10.4028/p-6NHJwo

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Online since:

March 2025

Authors:

Ibrahim Abbas*

Keywords:

CdO NPs, CdO NPs Energy Gap, CdO NPs Fe-SEM, CdO NPs XRD, Laser Ablation in Liquid

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