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<p>This article describes a new synthesis of nanoscaled Y<sub>2</sub>O<sub>3</sub> that is bioinspired. It has been confirmed that <i>Callistemon viminalis</i> flower extract works well as a chelator when used to bioengineer high-shape anisotropy nanorods of single-phase Y<sub>2</sub>O<sub>3</sub>. X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, fourier transform infrared spectroscopy and photoluminescence spectroscopy were used to analyse the structural, morphological, surface and optical features. The photoluminescent spectra of the bio-engineered nanorods show blue emissions. As the annealing temperature was increased from 300 to 500°C, the blue colour purity values of the synthesized Y<sub>2</sub>O<sub>3</sub> nanorods were 58.1, 80.7 and 77.0% at 300, 400 and 500°C respectively. The chromaticity coordinates (0.2020, 0.1931), (0.1660, 0.1082) and (0.1714, 0.1226) from the photoluminescence spectra of the biosynthesized Y<sub>2</sub>O<sub>3</sub> nanorods were used to determine these values. The CIE y-component coordinate values of the bioengineered blue-emitting nanophosphors suggest their potential for applications in display technology and white light-emitting diodes.</p>

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Bioengineered Y2O3 nanorods and their potential blue-emitting phosphors

  • 期刊论文

  • 发表日期：

    2025年3月22日

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  • Abdoulaye Diallo,
  • Sossé Ndiaye,
  • Teddy Tite,
  • Uğur Yahşi,
  • Victor Constantin Diculescu,
  • Adama Seck,
  • Allé Dioum,
  • Balla Diop Ngom,
  • Ishaq Ahmad,
  • Aurelian-Catalin Galca,
  • Shohreh Azizi

摘要

This article describes a new synthesis of nanoscaled Y2O3 that is bioinspired. It has been confirmed that Callistemon viminalis flower extract works well as a chelator when used to bioengineer high-shape anisotropy nanorods of single-phase Y2O3. X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, fourier transform infrared spectroscopy and photoluminescence spectroscopy were used to analyse the structural, morphological, surface and optical features. The photoluminescent spectra of the bio-engineered nanorods show blue emissions. As the annealing temperature was increased from 300 to 500°C, the blue colour purity values of the synthesized Y2O3 nanorods were 58.1, 80.7 and 77.0% at 300, 400 and 500°C respectively. The chromaticity coordinates (0.2020, 0.1931), (0.1660, 0.1082) and (0.1714, 0.1226) from the photoluminescence spectra of the biosynthesized Y2O3 nanorods were used to determine these values. The CIE y-component coordinate values of the bioengineered blue-emitting nanophosphors suggest their potential for applications in display technology and white light-emitting diodes.