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.

引用

页数：7

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