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A sensitive optical waveguide(OWG) sensor which can be used to detect volatile organic compounds(VOCs) was presented.The sensing device(element) was fabricated by means of the immobilization of polyvinyl pyrrolidone(PVP)-cyclodextrin(CD) composite film over a single-mode potassium ion exchanged glass OWG via spin-coating method.The sensor shows higher response to styrene gas than to other VOCs and displays a linear response to styrene gas in a range of 1―1000 μL/L.
A sensitive optical waveguide (OWG) sensor which can be used to detect volatile organic compounds (VOCs) was fabricated. The sensing device (element) was fabricated by means of the immobilization of polyvinyl pyrrolidone (PVP) -cyclodextrin (CD) composite film over a single-mode potassium ion exchanged glass OWG via spin-coating method. The sensor shows higher response to styrene gas than to other VOCs and displays a linear response to styrene gas in a range of 1-1000 μL / L.