酸化B2的结构,电子和热电性能PN通过第一原则研究
Amina1, Samah Al-Qaisi2, A M Quraishi3
1Department of Physics, Bacha Khan University Charsadda Pakistan dramina.faculty@bkuc.edu.pk.
RSC advances
|September 19, 2024
概括
单层化化 (B2PN) 呈现出有希望的热电性能. 这项理论研究揭示了它的热稳定性和1.14的高功率 (ZT),表明了热电器件的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 固态化学 固态化学
背景情况:
- 在能源应用中探索新的二维材料至关重要.
- 化化 (BPN) 是一种理论上预测的具有潜在电子和热电性质的材料.
研究的目的:
- 理论上研究单层化化 (B2PN) 的电子和热电特性.
- 评估B2PN.的稳定性和潜在的设备应用.
主要方法:
- 用密度函数理论 (DFT) 的计算来确定电子结构和稳定性.
- 使用phonon分散曲线和AMID模拟来评估动态和热稳定性.
- 计算了热电特性,包括Seebeck系数,电导率和热导率.
主要成果:
- 单层B2PN是热力学和热稳定的高达700K.
- 该材料具有0.25 eV (PBE) 和0.4 eV (HSE) 的直接带间隙.
- 洞配套系统获得了1.14的高功率 (ZT),表明了优异的热电性能.
结论:
- 单层B2PN由于其有利的电子和热性能,显示出热电应用的巨大潜力.
- 孔系统中的异型晶格导热率和增强的电导率有助于其高的ZT值.
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