Fluorescent polymer-porous silicon microcavity devices for explosive detection

被引：71

作者：

Levitsky, I. A. ^{[1
]}

Euler, W. B.

Tokranova, N.

Rose, A.

机构：

[1] Emitech Inc, Fall River, MA 02720 USA

[2] Univ Rhode Isl, Dept Chem, Kingston, RI 02881 USA

[3] SUNY Albany, Coll Nanoscale Sci & Engn, Albany, NY 12203 USA

[4] ICx Nomad, Cambridge, MA 02142 USA

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 04期

关键词：

D O I：

10.1063/1.2432247

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Conjugated polymers entrapped in porous silicon microcavity have been studied as optical sensors for low volatility explosives such as trinitrotoluene. The fluorescence spectra of entrapped polymers were modulated by the microcavity via a spectral "hole" that matches the resonance peak of the microcavity reflectance. Exposure of the porous silicon microcavity containing entrapped polymer to explosives vapor results in a red shift of the resonance peak and the spectral hole, accompanied by the quenching of the fluorescence. This multiplexed response provides multiple monitoring parameters, enabling the development of an optical sensor array for the detection of target explosive vapor. (c) 2007 American Institute of Physics.

引用

页数：3

共 17 条

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