arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1601.01632cond-mat.mtrl-sci
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单层ReS $_2$的菌种工程及其光催化应用

Strain engineering and photocatalytic application of single-layer ReS$_2$

Yan-Ling Li, Yunguo Li, Chunlin Tang

摘要:

我们提出了一个理论研究的电子,动力学和光催化性能的单层ReS $_2$单轴和剪切应变。单层ReS $_2$显示出强烈的各向异性应变响应。它在很宽的$x$轴向应变范围内保持动态稳定,但在2\% $y$轴向压应变时变得不稳定。计算结果表明,单层ReS $_2$是一种间接带隙半导体,在1 $-$ 5\% $x$ -轴向拉伸应变下,存在间接的$-$直接带隙跃迁.预测单层ReS $_2$不能催化水氧化反应。然而,1 $-$ 5\% $y$ -轴向拉伸应变可以使单层ReS $_2$用于整体光催化水裂解。此外,单层ReS $_2$也可以催化整体水裂解,并且在pH=3.8的酸性水溶液中最有效。

英文摘要:

We present a theoretical study on the electronic, dynamical, and photocatalytic properties of single-layer ReS$_2$ under uniaxial and shear strains. The single-layer ReS$_2$ shows strong anisotropic responses to straining. It remains dynamically stable for a wide range of $x$-axial strain, but becomes unstable for 2\% $y$-axial compressive strain. The single-layer ReS$_2$ is calculated to be an indirect bandgap semiconductor, and there is an indirect$-$direct bandgap transition under 1$-$5\% $x$-axial tensile straining. The single-layer ReS$_2$ is predicted incapable of catalyzing the water oxidation reaction. However, 1$-$5\% $y$-axial tensile strain can enable the single-layer ReS$_2$ for overall photocatalytic water splitting. Besides, the single-layer ReS$_2$ can also catalyze the overall water splitting and be most efficient under acidic water solutions with pH=3.8.

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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