Nanocrystalline Titanium dioxide coated optical fiber sensor for ammonia vapour detection

被引：5
|
作者：
Renganathan, B. [1 ]
Sastikumar, D. [1 ]
Gobi, G. [1 ]
Srinivasan, R. [1 ]
Yogamalar, N. Rajeswari [1 ]
Bose, A. Chandra [1 ]
机构：
[1] Natl Inst Technol, Dept Phys, Tiruchirappalli 620015, Tamil Nadu, India
来源：
NANOENGINEERING: FABRICATION, PROPERTIES, OPTICS, AND DEVICES VII | 2010年 / 7764卷
关键词：
Fiber optic sensor; ammonia emission; cladding modification; gas selectivity; nanocrystalline; TiO2; methanol detection; ethanol detection; gas sensing; metal oxide; TIO2;
D O I：
10.1117/12.860712
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Fiber optic sensor is proposed based on cladding modification method for detecting ammonia emissions. Nanocrystalline titanium dioxide is used as a sensing material and spectral characteristics of the sensor are studied for different concentrations (50-500 ppm) of ammonia, methanol and ethanol. The sensor shows a linear variation in the output light intensity with the concentration. The light intensity increases for ammonia whereas it decreases for methanol and ethanol. Gas selectivity of the sensor is discussed.
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页数：7
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