Multi-gas detection using Fabry-Perot interferometers on silicon chip

被引:11
|
作者
Guertin, Regis [1 ]
Bianki, Marc-Antoine [1 ]
Lemieux-Leduc, Cedric [1 ]
Peter, Yves-Alain [1 ]
机构
[1] Polytech Montreal, Dept Engn Phys, Montreal, PQ, Canada
关键词
Gas sensing; Fabry-Perot; Polymer; Non-specific detection; DESIGN; ARRAY;
D O I
10.1016/j.snb.2021.129655
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
This work presents an all optical on chip integrated gas sensor array for sensing multiple gas simultaneously using non-specific polymers as the sensing material. The individual sensors are vertically etched into silicon. They are made of two Bragg mirrors forming a Fabry-Perot cavity which is functionalized with different polymers such as polyethylene glycol (PEG), SU-8 and polydimethylsiloxane (PDMS). Multi-gas detection was achieved for various gas mixtures of isopropyl alcohol (IPA), H2O, valeric acid and butanol. Using a linear model, we report limits of detection as low as 8.1 parts per million (ppm) for valeric acid within mixtures.
引用
收藏
页数:5
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