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<p>The polycrystalline compound Nd<sub>2</sub>CoFeO<sub>6</sub> (NCFO) was prepared by the conventional solid-state method to explore its structural and optical properties. The Vibrational characteristics and Photoluminescence properties of the NCFO double perovskites has been investigated for the first time. The structure was elucidated by X-ray powder diffraction (XRD), revealing that this double perovskite forms a single-phase orthorhombic phase in the <i>pnma</i> space group. Evidence of spin–phonon coupling in NCFO was detected through Raman spectroscopy analysis. Results from Raman studies and group theory confirm that NCFO possesses Raman-active modes. The excitation and emissions of NCFO photoluminescence were investigated. The results indicate that the phosphor can be excited over the wavelength range 250—450&#xa0;nm, emitting violet-blue light at 406&#xa0;nm via the transition <sup>4</sup>D<sub>7/2</sub> → <sup>4</sup>I<sub>9<i>/</i>2</sub>.The results showed that the NCFO double perovskite has significant potential for use in opto-electronic and sensor devices.</p>

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Efficient deep violet-blue emission and lattice vibrational characteristics of Nd2CoFeO6 double perovskite for multifunctional applications

  • 期刊论文

  • 发表日期：

    2026年4月28日

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  • M. Dhilip

摘要

The polycrystalline compound Nd2CoFeO6 (NCFO) was prepared by the conventional solid-state method to explore its structural and optical properties. The Vibrational characteristics and Photoluminescence properties of the NCFO double perovskites has been investigated for the first time. The structure was elucidated by X-ray powder diffraction (XRD), revealing that this double perovskite forms a single-phase orthorhombic phase in the pnma space group. Evidence of spin–phonon coupling in NCFO was detected through Raman spectroscopy analysis. Results from Raman studies and group theory confirm that NCFO possesses Raman-active modes. The excitation and emissions of NCFO photoluminescence were investigated. The results indicate that the phosphor can be excited over the wavelength range 250—450 nm, emitting violet-blue light at 406 nm via the transition 4D7/2 → 4I9/2.The results showed that the NCFO double perovskite has significant potential for use in opto-electronic and sensor devices.