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 |
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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 |
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dc.identifier.uri |
http://dx.doi.org/10.1080/00032719.2012.673097 |
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dc.identifier.uri |
http://dspace.lib.cranfield.ac.uk/handle/1826/8215 |
|
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.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 |
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