使用衍生硫的Cu2S的绿色合成:结构,形态,光学,电气和光响应的表征,有可能用于热电应用
M M Shahidi1, M Akbari1, M Mehrabani2
1UNESCO-UNISA-ITL/NRF Africa Chair in Nanoscience and Nanotechnology, College of Graduate Studies, University of South Africa (UNISA) Muckleneuk Ridge, P.O. Box 392 Pretoria South Africa mahmoa@unisa.ac.za.
RSC advances
|February 4, 2025
概括
研究人员使用大开发了一种绿色合成硫化铜 (Cu2S) 薄膜. 这种可持续的方法产生了独特的纳米结构,具有可调节的光学和电气特性,用于光电子应用.
科学领域:
- 材料科学 材料科学 材料科学
- 绿色化学 绿色化学
- 纳米技术纳米技术
背景情况:
- 传统的硫化铜 (Cu2S) 薄膜合成通常涉及苛刻的化学物质和高温.
- 在纳米材料制造中越来越需要可持续和环保的方法.
研究的目的:
- 开发一种新的,绿色合成路径,用于Cu2S薄膜,使用大衍生硫.
- 描述合成的Cu2S膜的形态,结构,光学和电气特性.
- 探索这些绿色合成膜在光电子中的潜在应用.
主要方法:
- 在室温下使用大作为硫源的Cu2S薄膜的绿色合成.
- 使用野外发射扫描电子显微镜 (FESEM),拉瑟福反射光谱法 (RBS),粒子诱导X射线发射 (PIXE),拉曼光谱法,霍尔效应测量和扩散反射光谱法 (DRS) 的表征.
主要成果:
- 成功合成了Cu2S薄膜,具有独特的管状海洋珊瑚样纳米结构.
- 证实了Cu2S形成与最小的杂质,并确定了Cu2S和Cu2O相的存在.
- 证明了可调节带间隙能量 (2.06 eV到1.63 eV) 和具有增强导电性的p型半导体行为.
- 观察到对可见光的强光反应,表明适合用于光电子设备.
结论:
- 使用大的绿色合成方法是生产Cu2S薄膜的经济有效,可扩展和可持续的替代方案.
- 合成的Cu2S薄膜对光伏和热电的应用具有有前途的特性.
- 衍生硫为能源转换技术中可持续纳米材料合成提供了可行的资源.
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