用于ppb级NO2检测的Bi2S3/ZnO柔性室温传感器

IF 3.9 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Vacuum Pub Date : 2025-07-25 DOI:10.1016/j.vacuum.2025.114608

X.L. Xu , M.Y. Wang , H.T. Jiang , W. Ma , G.R. Sun , Z.H. Jin , Y. Lu , Y.H. Ma , S.Y. Ma

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引用次数: 0

摘要

由于二氧化氮对工业生产和人类健康的危害，柔性室温（FRT）传感器的发展是绝对必要的。本文采用溶剂热法制备了Bi2S3/ZnO纳米复合材料。气敏测量结果表明，Bi2S3/ZnO FRT传感器具有增强的灵敏度（0.5 ppm NO2, 4.83）和优异的选择性。此外，在连续300次45°弯曲后，灵敏度仍然达到3.5，传感器在25天后的响应值为3.5。传感性能的提高是由于丰富的纳米异质结的协同作用，增加了氧空位（54.01%）和比表面积（22.403 m2/g）。该创新材料设计为zno基FRT传感器检测ppb级NO2提供了参考。

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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Bi2S3/ZnO flexible room temperature sensor for ppb-level NO2 detection

Developments of flexible room temperature (FRT) sensors are absolutely essential due to the hazardous effects of NO₂ on industrial productions and human health. In this paper, Bi₂S₃/ZnO nanocomposites is synthesized by solvothermal method. The gas-sensing measurements indicate that the Bi₂S₃/ZnO FRT sensor exhibits enhanced sensitivity (0.5 ppm NO₂, 4.83) and excellent selectivity. In addition, the sensitivity still achieve 3.5 after 300 consecutive 45° bends, and the response value of the sensor after 25 days is 3.5. The improved sensing characteristics are attributed to the synergistic effect of abundant nano-heterojunctions, increased oxygen vacancies (54.01 %) and specific surface area (22.403 m²/g). The innovative material design provides a reference for detecting ppb-level NO₂ of ZnO-based FRT sensor.

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来源期刊

Vacuum 工程技术-材料科学：综合

CiteScore

6.80

自引率

17.50%

发文量

审稿时长

34 days

期刊介绍： Vacuum is an international rapid publications journal with a focus on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround times. The journal also published full research papers, thematic issues and selected papers from leading conferences. A report in Vacuum should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below. The scope of the journal includes: 1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics, gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting, sintering, and vacuum metrology. Technology and solutions for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes). 2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis. 3. Surface science; surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing, surface modification. 4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments, simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.