Utilization of ZnO nanorods growth on a tip of plastic optical fiber toward the realization of low-cost CO and CO2 gas sensor

被引：1
作者：
Fallah, Hoorieh [1 ]
Afra, Mahmood [1 ]
Mohajerani, Ezeddin [1 ]
Mohammad, Waleed S. [2 ]
机构：
[1] Shahid Beheshti Univ, Laser & Plasma Inst, GC, Tehran, Iran
[2] Bangkok Univ, Sch Engn, Ctr Res Optoelect Commun & Control Syst, Pathum Thani, Thailand
来源：
JOURNAL OF NANOPHOTONICS | 2017年 / 11卷 / 03期
关键词：
ZnO nanorods; backscattering; optical gas sensors; CO; CO2; URIC-ACID CONCENTRATIONS; ZINC-OXIDE; CARBON-MONOXIDE; RELATIVE-HUMIDITY; THIN-FILMS; SENSITIVITY; NANOSTRUCTURES; BIOSENSOR;
D O I：
10.1117/1.JNP.11.036023
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This study experimentally demonstrates the feasibility of utilizing zinc oxide nanorods for CO and CO2 gas detection via optical scattering. ZnO nanorods are grown on a plastic optical fiber to measure the effect of gas flow on the optical scattering at room temperature. The presence of nanorods minimizes the coupling of the Fresnel reflection. Placing the optical setup in a home-built gas chamber, an obvious distinguished change of the total reflection was observed when different gas concentrations were present. Reduction of reflection due to the presence of gas indicated that forward scattering leak has a dominant effect on the process. In addition, the results demonstrated that detection of CO gas at a concentration as low as 200 ppm had a higher response in comparison with CO2 gas. (C) 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
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页数：11
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