Abstract:A fiber-optic chemical sensor (FOCS) for detection of nitrogen dioxide (NO 2 ) molecules is reported. The FOCS presents an optropode structure because of the transmission properties of the sensitive material. The NO 2 FOCS is activated by using the semiconductor polymer: regioregular head-to-tail poly(3-octylthiophene-2,5-diyl). The operation wavelength of the sensor is 543.5 nm such that a simple LED and detector can be used for the design of this device. The sensor response decreases after each exposure, dem… Show more
“…Two fiber-optic designs are described. Another FOCS for NO 2 makes use of poly(3-octylthiophene) as a sensing material (82). This material undergoes large spectral changes at 543 nm if exposed to NO 2 .…”
Section: Sensors For Gases Vapors and Humiditymentioning
“…Two fiber-optic designs are described. Another FOCS for NO 2 makes use of poly(3-octylthiophene) as a sensing material (82). This material undergoes large spectral changes at 543 nm if exposed to NO 2 .…”
Section: Sensors For Gases Vapors and Humiditymentioning
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