Conjugated polymer sensors for explosive vapor detection

Yue Wang; Graham A. Turnbull; Ifor D. W. Samuel

doi:10.1117/12.894413

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16 September 2011 Conjugated polymer sensors for explosive vapor detection

Yue Wang, Graham A. Turnbull, Ifor D. W. Samuel

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Proceedings Volume 8118, Organic Semiconductors in Sensors and Bioelectronics IV; 81180E (2011) https://doi.org/10.1117/12.894413
Event: SPIE Photonic Devices + Applications, 2011, San Diego, California, United States

Abstract

Explosive sensing is a promising, emerging application for conjugated polymers. One exciting potential area of application is to clear landmines left after military actions. In this work, we demonstrate three ways to detect 10 partsper- billion of the model explosive, 1,4-dinitrobenzene (DNB): by monitoring fluorescence intensity, by measuring fluorescence lifetime, and by distributed-feedback (DFB) laser emission. A quenching of the fluorescence is observed upon DNB exposure. The reversibility of the quenching process has been demonstrated by purging with nitrogen.

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Yue Wang, Graham A. Turnbull, and Ifor D. W. Samuel "Conjugated polymer sensors for explosive vapor detection", Proc. SPIE 8118, Organic Semiconductors in Sensors and Bioelectronics IV, 81180E (16 September 2011); https://doi.org/10.1117/12.894413

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