SILAR-deposited manganese doped zinc oxide thin films for NO2 gas detection applications

IF 1.3 4区材料科学 Q3 CRYSTALLOGRAPHY

Phase Transitions Pub Date : 2023-02-28 DOI:10.1080/01411594.2023.2179921

N. Abood, P. Sable, G. Dharne

引用次数: 0

Abstract

ABSTRACT The structural, optical and gas detection characteristics of Mn-doped ZnO thin films synthesised by the Successive Ionic Layer Adsorption and Reaction (SILAR) process with varied doping concentrations (4, 6 and 8%) were examined. X-ray diffraction data was used to investigate the structural properties and confirm the hexagonal wurtzite crystal structure. The surface morphology and the existence of all elements were verified using a field emission scanning electron microscope and energy dispersive X-ray spectroscopy, respectively. To explore the vibrational bands present in Mn-doped ZnO films, we used FTIR spectra at ambient temperature. Ultraviolet-visible analysis reveals the absorption edge, which is found in the ultraviolet area, with a minor shift towards high wave length, whereas the energy bandgap decreases as Mn concentrations increase. At 200°C operating temperature, the gas sensing properties of Zn0.92Mn0.08O showed good sensitivity, selectivity and shorter response time when compared to other prepared films.

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用于NO2气体检测的硅沉积锰掺杂氧化锌薄膜

研究了不同掺杂浓度(4、6、8%)的连续离子层吸附反应(SILAR)法制备的mn掺杂ZnO薄膜的结构、光学和气体检测特性。利用x射线衍射数据研究了其结构性质，确定了六方纤锌矿的晶体结构。利用场发射扫描电镜和能量色散x射线能谱分别对表面形貌和所有元素的存在进行了验证。为了探索mn掺杂ZnO薄膜中的振动带，我们使用了室温下的FTIR光谱。紫外-可见分析显示，在紫外区，吸收边缘向高波方向有轻微的偏移，而能带隙随着Mn浓度的增加而减小。在200℃的工作温度下，与其他制备的薄膜相比，zn0.92 mn0.080 o的气敏性能表现出良好的灵敏度、选择性和较短的响应时间。

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

Phase Transitions 物理-晶体学

CiteScore

3.00

自引率

6.20%

发文量

审稿时长

1.4 months

期刊介绍： Phase Transitions is the only journal devoted exclusively to this important subject. It provides a focus for papers on most aspects of phase transitions in condensed matter. Although emphasis is placed primarily on experimental work, theoretical papers are welcome if they have some bearing on experimental results. The areas of interest include: -structural phase transitions (ferroelectric, ferroelastic, multiferroic, order-disorder, Jahn-Teller, etc.) under a range of external parameters (temperature, pressure, strain, electric/magnetic fields, etc.) -geophysical phase transitions -metal-insulator phase transitions -superconducting and superfluid transitions -magnetic phase transitions -critical phenomena and physical properties at phase transitions -liquid crystals -technological applications of phase transitions -quantum phase transitions Phase Transitions publishes both research papers and invited articles devoted to special topics. Major review papers are particularly welcome. A further emphasis of the journal is the publication of a selected number of small workshops, which are at the forefront of their field.