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arXiv 2501.13705cond-mat.mtrl-sciphysics.app-ph
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NaVTe半霍伊斯勒合金用于绿色能源应用的计算研究

Computational Studies of NaVTe Half Heusler Alloy for Green Energy Applications

Sumit Kumar, Ashwani Kumar, Anupam, Shyam Lal Gupta, Diwaker

AI总结:

本研究通过密度泛函理论计算了半霍伊斯勒合金NaVTe的结构、光学、电子、热电及热力学性质,发现其具有3.2 eV能带隙和优异光学性能,适用于热电和可再生能源应用。

摘要:

为减缓化石燃料的快速枯竭及其造成的环境危害,有必要研究能够将损失的能量转化为电能的高效且环保的材料。本研究利用密度泛函理论(DFT)考察了新型半霍伊斯勒(HH)材料NaVTe的结构、光学、电子、热电及热力学性质。采用Birch-Murnaghan状态方程确认了所研究NaVTe HH合金的结构稳定性。这些方程表明,该化合物具有结构稳定性,因为其基态能级为负值。根据能带结构和总态密度分析,对于自旋向下构型,NaVTe具有3.2 eV的能带隙。NaVTe的光学特性(包括最大电导率和电磁辐射吸收)使其成为光电应用中理想的材料。计算了品质因数及其他热力学和热电参数。根据这些预测结果,NaVTe HH合金将是热电和可再生能源应用的理想选择。

英文摘要:

To lessen the quick depletion of fossil fuels and the resulting environmental harm, it is necessary to investigate effective and eco-friendly materials that can convert lost energy into electricity. The structural, optical, electronic, thermo-electric, and thermodynamic properties of the novel half-Heusler (HH) material NaVTe were examined in the current work using density functional theory (DFT). The Birch-Murnaghan equations of states were used to confirm the structural stability of the NaVTe HH alloy under investigation. These equations show that the compound in question has structural stability because its ground-state energy levels are negative. For spin-down configurations, NaVTe possesses an energy band gap of 3.2 eV, according to band structure and total density of state analysis. NaVTe is a material that is desirable for optoelectronic applications due to its optical features, which include maximum conductivity and absorption of electromagnetic radiation. The figure of merit and other thermodynamic and thermoelectric parameters are calculated. According to these predicted outcomes, the NaVTe HH alloy would be the ideal option for thermo-electric and renewable energy applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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