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Oxygen Sensing Properties of Cu(I) Complex/Polystyrene Composite Nanofibers Prepared by Electrospinning

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Abstract:

The preparation and oxygen sensing properties of luminescence quenching oxygen sensing materials based on an electrospum composite nanofibers with [Cu(POP)DPPZ]BF4(POP = bis[2-(diphenylphosphino)phenyl]ether; DPPZ = dipyrido[2,3-a:3′,2′-c]phenazine) complex embedded within polystyrene (PS) matrix are described in this article. The luminescence of [Cu(POP)DPPZ]BF4 complex within the electrospum nanofibers can be efficiently quenched by oxygen with good sensitivity (I 0/I 100 = 5.54) and rapid response (3 s), which suggests that the Cu(I) complex/polystyrene composite nanofibers presented in this article can be used for developing oxygen sensors. The downward oxygen sensing Stern-Volmer plots can be attributed to the heterogeneous environment of the Cu(I) luminophore within the nanofibers. The high sensitivity is attributed to the low-dimensional structure of the nanofiber and its large surface area-to-volume ratio, which facilitates oxygen entry and diffusion.

Keywords: COPPER COMPLEX; ELECTROSPINNING; NANOFIBER; OXYGEN SENSING

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2011.5241

Publication date: November 1, 2011

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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