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<p>In this study, DyCrO<sub>3</sub> orthochromite was synthesized via the sol–gel method and its structural and optical properties were examined. Rietveld refinement of X-ray diffraction confirmed an orthorhombic structure with the <i>Pbnm</i> space group. UV–Vis absorption spectroscopy revealed a direct optical band gap of about 3.3&#xa0;eV, together with estimates of the Urbach energy and refractive index. The observed absorption features were further interpreted using crystal field theory to assign the Cr<sup>3</sup>⁺ electronic transitions. These findings highlight the promising potential of DyCrO<sub>3</sub> as a wide-bandgap perovskite oxide for future optoelectronic applications.</p>

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Enhanced structural and optical properties of DyCrO3 orthochromite for potential optoelectronic applications

  • 期刊论文

  • 发表日期：

    2026年1月24日

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  • Wiem Boujelbene,
  • R. Mguedla,
  • A. Ben Jazia Kharrat,
  • N. Chniba-Boudjada,
  • K. Khirouni,
  • S. Kammoun,
  • W. Boujelben

摘要

In this study, DyCrO3 orthochromite was synthesized via the sol–gel method and its structural and optical properties were examined. Rietveld refinement of X-ray diffraction confirmed an orthorhombic structure with the Pbnm space group. UV–Vis absorption spectroscopy revealed a direct optical band gap of about 3.3 eV, together with estimates of the Urbach energy and refractive index. The observed absorption features were further interpreted using crystal field theory to assign the Cr3⁺ electronic transitions. These findings highlight the promising potential of DyCrO3 as a wide-bandgap perovskite oxide for future optoelectronic applications.