Nanocrystalline cerium oxide coated fiber optic gas sensor

被引：36
作者：
Renganathan, B. [1 ]
Sastikumar, D. [2 ]
Bose, A. Chandra [2 ]
Srinivasan, R. [3 ]
Ganesan, A. R. [1 ]
机构：
[1] Indian Inst Technol, Dept Phys, Madras 600036, Tamil Nadu, India
[2] Natl Inst Technol, Dept Phys, Tiruchirappalli 620015, Tamil Nadu, India
[3] PSR Engn Coll, Dept Phys, Sivakasi 626140, India
来源：
CURRENT APPLIED PHYSICS | 2014年 / 14卷 / 03期
关键词：
Nanocrystalline CeO2; Cladding modification; Ammonia gas; Fiber optic sensor; Annealed CeO2; SENSING PROPERTIES; SENSITIVITY; CE;
D O I：
10.1016/j.cap.2013.12.022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A clad-modified fiber optic sensor with nanocrystalline CeO2 is proposed for gas detection. As-prepared and annealed CeO2 (500 degrees C) samples have been used as gas sensing media. The spectral characteristics of the fiber optic gas sensor are studied for various concentrations of ammonia, ethanol and methanol gases (0-500 ppm). The sensor exhibits linear variation in the spectral peak intensity with the gas concentration. The characteristics of the sensor are also studied for gas selectivity. The time response characteristics of the sensor are reported. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：467 / 471
页数：5
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