MEH-PPV film thickness influenced fluorescent quenching of tip-coated plastic optical fiber sensors
The performance of plastic optical fiber sensors in detecting nitro aromatic explosives 1,4-dinitrobenzene (DNB) have been investigated by fluorescence spectroscopy and analyzed by using fluorescence quenching technique. The plastic optical fiber utilized is 90 degrees cut tip and dip-coated with co...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Academic Press
2017
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| Online Access: | http://psasir.upm.edu.my/id/eprint/62387/ http://psasir.upm.edu.my/id/eprint/62387/1/MEH-PPV%20film%20thickness%20influenced%20fluorescent%20quenching%20of%20tip-coated%20plastic%20optical%20fiber%20sensors.pdf |
| Summary: | The performance of plastic optical fiber sensors in detecting nitro aromatic explosives 1,4-dinitrobenzene (DNB) have been investigated by fluorescence spectroscopy and analyzed by using fluorescence quenching technique. The plastic optical fiber utilized is 90 degrees cut tip and dip-coated with conjugated polymer MEH-PPV poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] thin films for detection conjugants. The thicknesses of the MEH-PPV coating were varied to improvise the sensitivity whilst slowly reducing the fluorescence intensity. It was shown that fluorescence intensity from thinner film decreased by (82% in 40 s) in the presence of DNB signifying an improvement of 28% reduction with time 13 s less than that of the thicker film. |
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