Scholarlink

<p>In this research, bismuth sulfide (Bi₂S₃) nanoparticles were synthesized using the solvothermal method, and their structural, chemical, and optical properties were investigated. Characterization of the nanoparticles was performed using FT-IR, XRD, SEM, EDX, UV-Vis, and PL techniques. FT-IR results confirmed the presence of functional groups related to the bismuth sulfide structure, with characteristic Bi-S stretching vibrations observed at 450–600&#xa0;cm⁻¹. The X-ray diffraction (XRD) pattern revealed the orthorhombic crystal structure of the nanoparticles, and the crystallite size was calculated to be approximately 38&#xa0;nm using the Debye-Scherrer equation. SEM images showed a uniform morphology and nanoscale structure of the particles with needle-like structures in the range of 40–90&#xa0;nm, while the EDX spectrum confirmed the presence of pure bismuth and sulfur elements with weight percentages of 78.8% and 21.2%, respectively. The UV-Vis spectrum calculated the energy gap of the nanoparticles to be 2.45&#xa0;eV. Additionally, the PL spectrum identified electronic transitions and optical properties of the nanoparticles with a main emission peak at around 500&#xa0;nm. Due to their unique optical and electronic properties, these nanoparticles have high potential for use in solar cells, sensors, and 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

Synthesis and investigation of properties of bismuth sulfide nanoparticles by solvothermal method

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月21日

查看全文
  • Farnam Amiri,
  • Samira Saeednia,
  • Parvaneh Iranmanesh

摘要

In this research, bismuth sulfide (Bi₂S₃) nanoparticles were synthesized using the solvothermal method, and their structural, chemical, and optical properties were investigated. Characterization of the nanoparticles was performed using FT-IR, XRD, SEM, EDX, UV-Vis, and PL techniques. FT-IR results confirmed the presence of functional groups related to the bismuth sulfide structure, with characteristic Bi-S stretching vibrations observed at 450–600 cm⁻¹. The X-ray diffraction (XRD) pattern revealed the orthorhombic crystal structure of the nanoparticles, and the crystallite size was calculated to be approximately 38 nm using the Debye-Scherrer equation. SEM images showed a uniform morphology and nanoscale structure of the particles with needle-like structures in the range of 40–90 nm, while the EDX spectrum confirmed the presence of pure bismuth and sulfur elements with weight percentages of 78.8% and 21.2%, respectively. The UV-Vis spectrum calculated the energy gap of the nanoparticles to be 2.45 eV. Additionally, the PL spectrum identified electronic transitions and optical properties of the nanoparticles with a main emission peak at around 500 nm. Due to their unique optical and electronic properties, these nanoparticles have high potential for use in solar cells, sensors, and optoelectronic devices.