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首页> 外文期刊>Journal of Materials Research >Enhanced room-temperature ammonia vapor-sensing activity of nebulizer spray pyrolysis fabricated SnO_2 thin films: an effect of Er doping
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Enhanced room-temperature ammonia vapor-sensing activity of nebulizer spray pyrolysis fabricated SnO_2 thin films: an effect of Er doping

机译：雾化器喷雾热解的增强室温氨蒸气传感活性制造的SnO_2薄膜：ER掺杂的效果

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摘要

In this work, we have coated 0,1,3, and 5 wt％ of Erbium (Er)-doped tin oxide (SnO_2) films on glass using a simple nebulizer spray pyrolysis method to make an ammonia vapor sensor with remarkable sensitivity. X-ray diffraction, Atomic force microscopy, Ultraviolet-visible spectroscopy and photoluminescence methods were employed to inspect the thin-film samples. Room-temperature ammonia vapor sensing was performed by a computer connected to the homemade gas-sensing system. The results obtained show that Er doping in SnO_2 films gradually decreased the crystallite size with an increase of the surface area improving the sensing property of the vapor. A minimum optical band gap (i.e., 3.23 eV) is achieved for 5 wt％ Er-doped film. The fabricated Er-doped SnO_2 gas sensor showed response/recovery time highly dependent on dopant concentration. The Er concentration of 5 wt％ doped SnO_2 thin film showed maximum sensitivity of 91 ％, fast response, and recovery time of 29 and 7 s, respectively, due to high surface to volume ratio.
机译：在这项工作中，我们已经涂覆0,1,3，和使用简单的喷雾器喷雾热解方法，使具有显着的灵敏度的氨蒸气传感器上玻璃铒（Er）掺杂的氧化锡（SnO_2）膜的5重量％。被雇用的X射线衍射，原子力显微镜，紫外 - 可见光谱和光致发光的方法来检查薄膜样品。室温氨蒸气感测通过连接到自制气体感测系统中的计算机执行。获得的结果显示，在SnO_2膜铒掺杂逐渐微晶尺寸的增加的表面面积提高了蒸气的感测特性的降低。的最小的光学带隙（即，3.23电子伏特）的5％（重量）的掺Er薄膜来实现。所制造的掺铒SnO_2气体传感器表明响应/恢复时间高度依赖于掺杂剂浓度。 5重量％的掺杂SnO_2薄膜的铒浓度下显示出91％的最大的灵敏度，响应速度快，和第29个7 S，分别恢复时间后，由于高的表面与体积之比。

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  • 来源
    《Journal of Materials Research》 |2021年第3期|657-667|共11页
  • 作者

    S. Maheswari; M. Karunakaran; K. Hariprasad; K. Kasirajan; L. Bruno Chandrasekar; T. Alshahrani; Mohd. Shkir; S. AIFaify;

  • 作者单位

    Department of Physics Caussanel College of Arts and Science Muthupettai India PC and Research Department of Physics Alagappa Govt Arts College Karaikudi 630003 India;

    PC and Research Department of Physics Alagappa Govt Arts College Karaikudi 630003 India;

    Department of Physics Institute of Aeronautical Engineering Dundigal Hyderabad 500043 India;

    PC and Research Department of Physics Alagappa Govt Arts College Karaikudi 630003 India;

    Department of Physics Periyar Maniammai Institute of Science & Technology Vallam India;

    Department of Physics College of Science Princess Nourah Bint Abdulrahman University Riyadh 11671 Saudi Arabia;

    Research Center for Advanced Materials Science (RCAMS) King Khalid University P.O. Box 9004 Abha 61413 Saudi Arabia Advanced Functional Materials and Optoelectronic Laboratory (AFMOL) Department of Physics Faculty of Science King Khalid University Abha 61413 Saudi Arabia;

    Advanced Functional Materials and Optoelectronic Laboratory (AFMOL) Department of Physics Faculty of Science King Khalid University Abha 61413 Saudi Arabia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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