Conjugated polymer sensors for explosive vapor detection
Conjugated polymer sensors for explosive vapor detection
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用于爆炸性蒸气检测的共轭聚合物传感器
DOI：
10.1117/12.894413
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Wang Y
中科院分区：
文献类型：
--
作者：
Wang Y
爆炸传感是共轭聚合物一种很有前途的新兴应用。一个令人兴奋的潜在应用领域是清除军事行动后遗留的地雷。在这项工作中，我们展示了三种检测100亿股模型炸药1，4-二硝基苯(DNB)的方法：通过监测荧光强度，通过测量荧光寿命，以及通过分布反馈(DFB)激光发射。在DNB照射下观察到荧光猝灭。用氮气吹扫证明了淬火过程的可逆性。
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.