Microwave Absorption Properties of Hexagonal Ba3(VO4)2 through Zn Doping: A Comprehensive Analysis of Ba3-xZnx(VO4)2

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-05-22 DOI:10.1149/2162-8777/ad4f13

Praveen Chenna, S. Gandi, Sahil Sharma, Saran Srihari Sripada Panda, Sadi Reddy Parne

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引用次数: 0

Abstract

The current study explores the influence of Zinc (Zn) doping on the crystallography, optical behavior, dielectric properties, and microwave absorption characteristics of hexagonal Barium Vanadate (Ba3(VO4)2). Samples were systematically synthesized with Zn doping concentrations of x=0, 0.05, 0.1, 0.15, and 0.2 mol%, resulting in Ba3-xZnx(VO4)2. Employing various characterization techniques, the alterations in structural, optical, and electrical responses due to incremental Zn incorporation are reported. The UV–VIS DRS absorption spectra reveal a decrease in energy bandgap with increasing concentration of Zn. The lowest optical energy band gap observed was 3.65 eV for x=0.2 mol% Zn. Notably, at a thickness of 6.5 mm, the material achieved a high reflection loss of -82.37 dB at 12.47 GHz for x=0.05 mol% of Zn. Similarly, the same material configuration exhibited a maximum effective absorption bandwidth (EAB) of 5.01 GHz, spanning a frequency range from 12.24 to 17.25 GHz when the thickness was set to 5.5 mm. Furthermore, as the Zn concentration increased from x=0.05 to 0.2 mol%, a decreasing trend in reflection loss was observed, correlating well with the dielectric parameters of samples with different Zn concentrations. The work provides insightful correlations between Zn doping levels and the material’s performance in potential applications ranging from optoelectronics to electromagnetic wave absorption.

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掺杂锌的六方 Ba3(VO4)2 的微波吸收特性：Ba3-xZnx(VO4)2 的综合分析

本研究探讨了掺锌对六方钒酸钡（Ba3(VO4)2）晶体学、光学行为、介电性质和微波吸收特性的影响。系统地合成了锌掺杂浓度为 x=0、0.05、0.1、0.15 和 0.2 摩尔%的样品，得到了 Ba3-xZnx(VO4)2。本研究采用各种表征技术，报告了锌掺入量的增加所引起的结构、光学和电学响应的变化。紫外-可见DRS吸收光谱显示，能带隙随着锌浓度的增加而减小。在 x=0.2 摩尔% Zn 时，观察到的最低光能带隙为 3.65 eV。值得注意的是，在厚度为 6.5 mm 时，x=0.05 摩尔% Zn 的材料在 12.47 GHz 频率下的反射损耗高达 -82.37 dB。同样，当厚度设定为 5.5 毫米时，相同的材料配置显示出 5.01 千兆赫的最大有效吸收带宽（EAB），频率范围从 12.24 千兆赫到 17.25 千兆赫。此外，随着锌浓度从 x=0.05 摩尔%增加到 0.2 摩尔%，反射损耗呈下降趋势，这与不同锌浓度样品的介电参数密切相关。这项研究深入探讨了锌掺杂水平与材料性能之间的相关性，其潜在应用范围包括光电子学和电磁波吸收。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.