α-BaSnS3和β-BaSnS3的机械,光学和热电特性
1School of Materials Science and Physics, China University of Mining and Technology Xuzhou 221116 China 3391@cumt.edu.cn.
RSC advances
|April 18, 2025
概括
这项研究表明,α-BaSnS3和β-BaSnS3都是稳定的,具有光电子潜力的可伸缩半导体. 由于其无和性,β-BaSnS3显示出有前途的热电特性.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 计算化学计算化学
背景情况:
- 酸锡硫化物 (BaSnS3) 存在于具有不同特性的多个相.
- 了解机械,光学和热电特性对于材料应用至关重要.
研究的目的:
- 研究α-BaSnS3和β-BaSnS3.3的机械,光学和热电性能.
- 评估它们适用于光电子和热电应用的适用性.
主要方法:
- 使用了第一原则计算.
- 分析了声子分散,电子结构和光学吸收.
- 计算了格子的导热率和热电功率 (ZT).
主要成果:
- α-BaSnS3和β-BaSnS3都是动态稳定的,可伸缩的,间接的带隙半导体.
- 观察到高光学吸收系数,表明光电子潜力.
- 由于不和性,β-BaSnS3的晶格导热率较低,导致ZT值高,为1.06.
结论:
- α-BaSnS3和β-BaSnS3是光电子和热电设备的有希望的材料.
- 每个阶段的独特特性为特定应用提供可调节的性能.
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