Scholarlink

<p>The citrate sol–gel technique was employed in fabricating MgCu<sub>2</sub>O<sub>3</sub> ternary oxide nanopowders using varying molar concentrations of copper precursor. The as-synthesized nanomaterials were calcined at 800&#xa0;°C for 2&#xa0;h to enhance their qualities. The effects of varying copper concentration on the structure, morphology and optical features of the prepared MgCu<sub>2</sub>O<sub>3</sub> nanomaterials were investigated using X-ray diffraction (XRD), transmission electron microscopy (TEM) and ultraviolet–visible-infrared (UV–Vis–IR) spectrophotometry, respectively. The XRD patterns revealed phase transition from MgO/Cu<sub>2</sub>O nanocomposite, for Cu precursor concentrations of 0.1–0.2&#xa0;M to single-phase orthorhombic structure of MgCu<sub>2</sub>O<sub>3</sub> nanoparticles with preferred orientation in the (040) plane for Cu precursor concentrations of 0.3–0.5&#xa0;M. TEM results established that the fabricated materials are within nanoscale. UV–Vis–IR spectrophotometry results showed that the bandgap energy of the synthesized MgCu<sub>2</sub>O<sub>3</sub> ternary oxide can be tuned in the range of 1.45–2.38&#xa0;eV by varying the concentration of Cu precursor, making it suitable for possible application in solar cells as both window material and absorber material, as well as in other optoelectronic devices.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Sol–gel synthesis and characterization of MgCu2O3 nanoparticles

  • 期刊论文

  • 发表日期：

    2025年4月10日

查看全文
  • M. O. Duru,
  • O. K. Echendu,
  • F. C. Eze,
  • C. A. Madu,
  • S. J. Motloung,
  • A. U. Yimamu

摘要

The citrate sol–gel technique was employed in fabricating MgCu2O3 ternary oxide nanopowders using varying molar concentrations of copper precursor. The as-synthesized nanomaterials were calcined at 800 °C for 2 h to enhance their qualities. The effects of varying copper concentration on the structure, morphology and optical features of the prepared MgCu2O3 nanomaterials were investigated using X-ray diffraction (XRD), transmission electron microscopy (TEM) and ultraviolet–visible-infrared (UV–Vis–IR) spectrophotometry, respectively. The XRD patterns revealed phase transition from MgO/Cu2O nanocomposite, for Cu precursor concentrations of 0.1–0.2 M to single-phase orthorhombic structure of MgCu2O3 nanoparticles with preferred orientation in the (040) plane for Cu precursor concentrations of 0.3–0.5 M. TEM results established that the fabricated materials are within nanoscale. UV–Vis–IR spectrophotometry results showed that the bandgap energy of the synthesized MgCu2O3 ternary oxide can be tuned in the range of 1.45–2.38 eV by varying the concentration of Cu precursor, making it suitable for possible application in solar cells as both window material and absorber material, as well as in other optoelectronic devices.