Optical Gas Sensor Fabrication Based on Porphyrin-Anchored Electrostatic Self-Assembly onto Tapered Optical Fibers
| dc.contributor.author | Jarzebinska, Renata | - |
| dc.contributor.author | Korposh, Sergiy | - |
| dc.contributor.author | James, Stephen W. | - |
| dc.contributor.author | Batty, William J. | - |
| dc.contributor.author | Tatam, Ralph P. | - |
| dc.contributor.author | Lee, Seung-Woo | - |
| dc.date.accessioned | 2014-01-30T17:57:24Z | |
| dc.date.available | 2014-01-30T17:57:24Z | |
| dc.date.issued | 2012-07-31T00:00:00Z | - |
| dc.description.abstract | Tapered optical fibers with nano-assembled coatings of thicknesses of order tens of nanometres were used for the detection of ammonia gas. The film coating was composed of alternate layers of tetrakis-(4-sulfophenyl) porphine (TSPP) and poly(allylamine hydrochloride) (PAH), which were deposited using the electrostatic self-assembly process (ESA). Exposure of a PAH/TSPP nano-assembled non-adiabatic tapered optical fiber with a waist diameter of 10µm to ammonia induced significant optical changes in the transmission spectrum of the optical fiber. The fiber optic sensor showed a linear sensitivity to the concentration of ammonia in the range of 10-100ppm, with response and recovery times less than 100 and 240sec, respectively. The 3σ limit of detection (LOD) was estimated to be ca. 2ppm. | en_UK |
| dc.identifier.citation | Renata Jarzebinska, Sergiy Korposh, Stephen James, William Batty, Ralph Tatam and Seung-Woo Lee, Optical Gas Sensor Fabrication Based on Porphyrin-Anchored Electrostatic Self-Assembly onto Tapered Optical Fibers, Analytical Letters, Volume 45, Issue 10, 2012, Pages 1297-1309. | |
| dc.identifier.issn | 0003-2719 | - |
| dc.identifier.uri | http://dx.doi.org/10.1080/00032719.2012.673097 | - |
| dc.identifier.uri | http://dspace.lib.cranfield.ac.uk/handle/1826/8215 | |
| dc.publisher | Taylor & Francis | en_UK |
| dc.rights | This is a postprint of an article whose final and definitive form has been published in the Analytical Letters 2012 copyright Taylor & Francis; Analytical Letters is available online at: http://www.tandfonline.com/doi/abs/10.1080/00032719.2012.673097#.UuuBSLS0CW9 | |
| dc.title | Optical Gas Sensor Fabrication Based on Porphyrin-Anchored Electrostatic Self-Assembly onto Tapered Optical Fibers | en_UK |
| dc.type | Article | - |