Study of TNT Sensor Based on Fluorescence Quenching of Conjugated Polymer MEH-PPV

Feng Hong Chu; Lei Ye; Jian Qiang Zhang; Ben Shang Yang; Mian Zhao; Deng Zheng Huang; Si Hua Zhen

doi:10.4028/www.scientific.net/AMM.58-60.2688

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 58-60Study of TNT Sensor Based on Fluorescence...

Study of TNT Sensor Based on Fluorescence Quenching of Conjugated Polymer MEH-PPV

Abstract:

A nitro aromatic explosives sensor based on fluorescence quenching was studied in this paper. U-shaped plastic optical fiber was used as sensor head and light emitting conjugated polymer MEH-PPV as fluorescence indictor. The light source was modulated sinusoidal to eliminate the external light disturbance. TNT quenching characteristics of fluorescence intensity were measured; When TNT concentration was lower than 10mg/ml, the relationship between fluorescence intensity and TNT concentration was linearly, when TNT concentration was higher than 10mg/100ml the obtained characteristics showed deviation from linear relation described by Stern-Volmer equation.

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Periodical:

Applied Mechanics and Materials (Volumes 58-60)

Pages:

2688-2692

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.58-60.2688

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Online since:

June 2011

Authors:

Feng Hong Chu, Lei Ye, Jian Qiang Zhang, Ben Shang Yang, Mian Zhao, Deng Zheng Huang, Si Hua Zhen

Keywords:

Fluorescence Quenching, Nitro Aromatic Explosive, Plastic Optical Fiber

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