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http://cio.repositorioinstitucional.mx/jspui/handle/1002/1126| Fiber-Optic Chemical Sensor for Detection of NO2 Using Poly (3-Octylthiophene) | |
| Elder de la Rosa Cruz | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| 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, demonstrating the reduction in sensitivity as well as irreversibility lower than 5%. However, its properties such as rapid response, high selectivity, high sensitivity (0.43 ± 0.01 muW/ppm), hygroscopic properties, and its operation at room temperature make this kind of FOCS a good alternative for NO 2 toxic gas detection. | |
| 23-10-2007 | |
| Artículo | |
| CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA | |
| Aparece en las colecciones: | Articulos Arbitrados 2007 |
Cargar archivos:
| Fichero | Tamaño | Formato | |
|---|---|---|---|
| FIBER-OPTIC CHEMICAL.pdf | 5.55 MB | Adobe PDF | Visualizar/Abrir |