Silicon-based surface plasmon resonance chemical sensors

被引：20
|
作者：
Nikitin, PI [1 ]
Beloglazov, AA [1 ]
Valeiko, MV [1 ]
Creighton, JA [1 ]
Smith, AM [1 ]
Sommerdijk, NAJM [1 ]
Wright, JD [1 ]
机构：
[1] UNIV KENT,DEPT CHEM,CTR MAT RES,CANTERBURY CT2 7NH,KENT,ENGLAND
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 1997年 / 38卷 / 1-3期
基金：
俄罗斯基础研究基金会;
关键词：
phthalocyanines; silicon; surface-enhanced Raman scattering; surface plasmon resonance;
D O I：
10.1016/S0925-4005(97)80171-2
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A silicon-based surface plasmon resonance (SPR) technique has been successfully applied to NO2 sensing at ppm level using devices with uncoated and phthalocyanine-coated gold films. Surface-enhanced Raman scattering (SERS) has been used as an additional data-acquisition channel capable of providing spectroscopic selectivity and amplified sensitivity. Reversible responses of both SERS and SPR-induced photosignals produced by Au-on-Si grating structures coated with thin 18-crown-6 H(2)pc phthalocyanine films are simultaneously recorded for exposures of the films to 10 ppm of NO2 in air. Possible sensing applications are discussed.
引用
收藏
页码：53 / 57
页数：5
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