Theoretical exploration of the crystal stability and optoelectronic features of ternary nitrides A3MN3 (A = Sr, Ba; M = Ga, In)

IF 2.8 3区 物理与天体物理 Q2 PHYSICS, CONDENSED MATTER
Yanjie Zhang , Hongyan Zeng , Rongjian Sa , Xingyuan Chen , Diwen Liu
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引用次数: 0

Abstract

Ternary metal nitrides are of great interest in terms of their fundamental properties in recent years. Despite extensive experimental and computational explorations of these nitrides have been investigated, there are currently no reports of A3MN3 (A = Sr, Ba; M = Ga, In). Herein, comprehensive calculations are executed to study their crystal stability, optoelectronic features, and elastic properties. The results disclose that the thermodynamic stability of four compounds is ensured, and they are also dynamically and mechanically stable. Furthermore, Sr3MN3 and Ba3MN3 (M = Ga, In) are found to be brittle and ductile materials, respectively. All compounds are further predicted to be indirect-gap semiconductors with an energy gap of 1.0–1.5 eV. Besides, the observation of optical properties reveals their significant solar absorption. Notably, this research elucidates the potential of these nitrides for solar energy conversion.
三元氮化物 A3MN3(A = Sr、Ba;M = Ga、In)晶体稳定性和光电特性的理论探索
近年来,三元金属氮化物的基本特性备受关注。尽管对这些氮化物进行了广泛的实验和计算探索,但目前还没有关于 A3MN3(A = Sr, Ba; M = Ga, In)的报道。本文通过综合计算研究了它们的晶体稳定性、光电特性和弹性特性。结果表明,四种化合物的热力学稳定性得到了保证,而且它们在动力学和机械学上也是稳定的。此外,还发现 Sr3MN3 和 Ba3MN3(M = Ga、In)分别是脆性和韧性材料。据进一步预测,所有化合物都是能隙为 1.0-1.5 eV 的间接隙半导体。此外,对光学特性的观察还发现了它们对太阳光的显著吸收。值得注意的是,这项研究阐明了这些氮化物在太阳能转换方面的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Physica B-condensed Matter
Physica B-condensed Matter 物理-物理:凝聚态物理
CiteScore
4.90
自引率
7.10%
发文量
703
审稿时长
44 days
期刊介绍: Physica B: Condensed Matter comprises all condensed matter and material physics that involve theoretical, computational and experimental work. Papers should contain further developments and a proper discussion on the physics of experimental or theoretical results in one of the following areas: -Magnetism -Materials physics -Nanostructures and nanomaterials -Optics and optical materials -Quantum materials -Semiconductors -Strongly correlated systems -Superconductivity -Surfaces and interfaces
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