Scholarlink

<p>This study investigates the structural characteristics, optical band gap, luminescence, and electrical properties of a newly synthesized lead-free halide CsSnCl<sub>3</sub> perovskite semiconductor/ Cs<sub>2</sub>O nanocomposite. The XRD patterns show that there is a monoclinic crystal phase of the perovskite semiconductor CsSnCl<sub>3</sub> as well as a rhombohedral phase of Cs<sub>2</sub>O at 400&#xa0;°C in an argon environment. Moreover, the XPS spectra of the sample at 400&#xa0;°C reveal the presence of Cs 3d, Sn 3d, Cl 2p, and O 1s, indicating the production of both substances. HRTEM and FESEM enable the visualization of both the structural details and size variations in quantum dot-like materials. The optical band gap of synthesized nanocomposite compositions shows a clear red shift in the absorption spectra, which lowers the band gap from 2.7&#xa0;eV to 1.37&#xa0;eV. An influential and tunable photoluminescence emission was found at ambient temperature, spanning a broad spectrum from the visible to near-infrared area. When exposed to an argon environment at 400&#xa0;°C, the material’s structural features changed significantly. In the lower frequency range, the permittivity exceeded 10<sup>6</sup>, and the DC conductivity increased to 6.15 × 10<sup>−6</sup> S/cm. This research examines the multifunctional potential of CsSnCl<sub>3</sub>/Cs<sub>2</sub>O nanocomposites, investigating their optical, luminescent, and electrical properties.</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

Modulating, structural, optical band gap, luminescence, and electrical properties of perspective synthesized lead-free halide perovskite CsSnCl3/Cs2O nanocomposites

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年2月25日

查看全文
  • Fawzy G. El Desouky

摘要

This study investigates the structural characteristics, optical band gap, luminescence, and electrical properties of a newly synthesized lead-free halide CsSnCl3 perovskite semiconductor/ Cs2O nanocomposite. The XRD patterns show that there is a monoclinic crystal phase of the perovskite semiconductor CsSnCl3 as well as a rhombohedral phase of Cs2O at 400 °C in an argon environment. Moreover, the XPS spectra of the sample at 400 °C reveal the presence of Cs 3d, Sn 3d, Cl 2p, and O 1s, indicating the production of both substances. HRTEM and FESEM enable the visualization of both the structural details and size variations in quantum dot-like materials. The optical band gap of synthesized nanocomposite compositions shows a clear red shift in the absorption spectra, which lowers the band gap from 2.7 eV to 1.37 eV. An influential and tunable photoluminescence emission was found at ambient temperature, spanning a broad spectrum from the visible to near-infrared area. When exposed to an argon environment at 400 °C, the material’s structural features changed significantly. In the lower frequency range, the permittivity exceeded 106, and the DC conductivity increased to 6.15 × 10−6 S/cm. This research examines the multifunctional potential of CsSnCl3/Cs2O nanocomposites, investigating their optical, luminescent, and electrical properties.