Characterization and Properties of ZnO:Nd³⁺ Nanomaterial Synthesized by Chemical Synthesis Method

Abstract:

Nd³⁺ ion-doped ZnO nanomaterial was prepared using chemical synthesis method and its fluorescence spectra have been investigated at room temperature. From SEM images of the synthesized ZnO: Nd³⁺ nanoparticles it is observed that an increase in concentration of Nd³⁺ ions leading to the decrease in the particle size. Nearly hexagonal shapes for the dark spots in the SAED images indicate that the ZnO nanoparticles are almost hexagonal. The oscillator strengths leading to 4f ↔ 4f transitions are characterized by different Judd-Ofelt intensity parameters Ω_λ (λ = 2, 4 and 6). These Ω_λ parameters along with the fluorescence data and various radiative properties viz., spontaneous emission probability (A), radiative life time (t), fluorescence branching ratio (b) and stimulated emission cross-section (s_p) were evaluated and compared with the reported values. The values of these parameters indicate that the observed transitions ⁴F_3/2 → ⁴I_11/2, ⁴F_3/2 → ⁴I_13/2 and ⁴F_3/2 → ⁴I_15/2 can be considered to be good laser transitions in the near infrared region for different optoelectronic and spintronic uses.

• Periodical: Journal of Metastable and Nanocrystalline Materials (Volume 40)
• Pages: 1-13
• DOI: https://doi.org/10.4028/p-M0pMsg
• Online since: August 2024
• Authors: Sudha Pal, Jitendra Pal Singh, Yogesh Kumar Sharma, Atanu Nag*, Shu Chi Huang, Shyan Lung Chung
• Keywords: Nanomaterial, Nanoparticle, Nanostructure, Optoelectronic Nanomaterial

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