[en] In this work, we present the results of a sensor exploiting a coating consisting of lutetium bisphthalocyanine (LuPc2) dispersed in a porous silica matrix deposited by a sol-gel process. LuPc2 shows a gasochromic effect in the telecommunication wavelengths range. The absorption spectrum in this range strongly decreases in contact with NO2. The sensor consists then in a coating deposited on a single-mode silica fiber tip in order to form a Fabry-Pérot cavity. An amplitude change in the reflected spectrum is observed after contact with 1 ppm NO2 thus showing its sensitivity to that gas.
Research center :
CRIM - Ingénierie des matériaux
Disciplines :
Computer science Physics
Author, co-author :
Debliquy, Marc ; Université de Mons > Faculté Polytechnique > Science des Matériaux
Lahem, Driss
Bueno Martinez, Antonio ; Université de Mons > Faculté Polytechnique > Electromagnétisme et Télécommunications
Caucheteur, Christophe ; Université de Mons > Faculté Polytechnique > Electromagnétisme et Télécommunications