纯TiO2/PSi和TiO2@Ag/PSi结构作为有毒气体的可控传感器

IF 1.4 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY AIMS Materials Science Pub Date : 2022-01-01 DOI:10.3934/matersci.2022031
A. Abdullah, A. Haider, A. A. Jabbar
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引用次数: 0

摘要

在本研究中,在室温下制备了两个二氧化钛TiO2球团。第一种是纯二氧化钛,另一种是掺杂银(2.5%)。采用脉冲激光沉积(PLD)技术在多孔硅(PSi)上沉积微球。扫描电镜和能量色散x射线能谱分析结果表明,TiO2/PSi和TiO2@Ag/PSi复合材料的表面形貌有所改善。然后将复合材料作为二氧化碳气体传感器进行测试。复合材料的电学测量表明,掺杂金属的CO2气体传感器的电阻降低。当浓度为2.5%时,ag掺杂TiO2薄膜对CO2的灵敏度可提高至55%,而纯二氧化钛薄膜的灵敏度最高(26%)。
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Pure TiO2/PSi and TiO2@Ag/PSi structures as controllable sensor for toxic gases

In this research, two pellets of titanium dioxide TiO2 were prepared at room temperature. The first was pure titanium dioxide, and the other was doped with silver (2.5%). The pellets were deposited on porous silicon (PSi) with the pulsed laser deposition (PLD) technique. The results of scanning electron microscopy and energy-dispersive X-ray spectroscopy showed improvements in the surface morphologies of the TiO2/PSi and TiO2@Ag/PSi composites. The composites were then tested as CO2 gas sensors. The electrical measurements of the composites showed a decrease in the electrical resistance of the CO2 gas sensor doped with a metal. Sensitivity to CO2 increased to up to 55% in Ag-doped TiO2 film with a concentration of 2.5%, and the highest sensitivity value was obtained in the pure titanium dioxide film (26%).

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来源期刊
AIMS Materials Science
AIMS Materials Science MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
3.60
自引率
0.00%
发文量
33
审稿时长
4 weeks
期刊介绍: AIMS Materials Science welcomes, but not limited to, the papers from the following topics: · Biological materials · Ceramics · Composite materials · Magnetic materials · Medical implant materials · New properties of materials · Nanoscience and nanotechnology · Polymers · Thin films.
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