Lattice compressive strain-controlled electromagnetic wave absorption in TMDs by plasma-assisted rapid annealing

IF 17.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter Pub Date : 2025-05-16 DOI:10.1016/j.matt.2025.102151

Jiaming Wen, Yiyang Liu, Shengchong Hui, Lechun Deng, Limin Zhang, Xiaomeng Fan, Qiang Chen, Xingmin Liu, Xiangcheng Li, Na Yan, Hongjing Wu

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引用次数: 0

Abstract

The strain control of a transition metal dichalcogenide (TMD) absorber is an intriguing approach for tuning electromagnetic wave absorption properties. Moreover, efficient and lower-temperature methods are needed to modulate lattice strain. Here, we report an efficient approach to trigger the growth of MoO₃@MoTe_2(1−2x)S_2x via plasma-assisted relatively rapid annealing (PARA) at a ramp rate of 80°C/min up to 500°C. The high-energy particles and active radicals (·N) generated by plasma enhanced thermal interactions of annealing, together with the extrusion of polar chalcogen with larger radii and the construction of an electronic buffer layer with a shell-core structure modulating the lattice compressive strain. Benefiting from the tailored lattice strains along with the Te content increases in PARA-MoTe_2(1−X)S_2X, the effective absorption bandwidth of PARA-MoTe_1.5S_0.5 with a maximum strain of 1.15% reaches 9.01 GHz at a thickness of 2.92 mm, significantly outperforming the MoO₃ counterpart (0 GHz).

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等离子体辅助快速退火中晶格压缩应变控制的tmd电磁波吸收

过渡金属二硫化物（TMD）吸收体的应变控制是一种调整电磁波吸收特性的有趣方法。此外，还需要有效和低温的方法来调制晶格应变。在这里，我们报告了一种通过等离子体辅助相对快速退火（PARA）以80°C/min至500°C的斜坡速率触发MoO3@MoTe2(1−2x)S2x生长的有效方法。等离子体产生的高能粒子和活性自由基（·N）增强了退火的热相互作用，同时挤压出半径更大的极性碳，并构建了具有调节晶格压缩应变的壳核结构的电子缓冲层。随着Te含量的增加，PARA-MoTe2(1−X)S2X中晶格应变的定制化，最大应变为1.15%的PARA-MoTe1.5S0.5在厚度为2.92 mm时的有效吸收带宽达到9.01 GHz，显著优于MoO3 （0 GHz）。

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来源期刊

Matter MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

26.30

自引率

2.60%

发文量

367

期刊介绍： Matter, a monthly journal affiliated with Cell, spans the broad field of materials science from nano to macro levels,covering fundamentals to applications. Embracing groundbreaking technologies,it includes full-length research articles,reviews, perspectives,previews, opinions, personnel stories, and general editorial content. Matter aims to be the primary resource for researchers in academia and industry, inspiring the next generation of materials scientists.