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Multianalytes Gas Sensors by Soft Lithography Induced Gratings with Sol-Gel and Copolymers Nanocomposites

  • A. El Sachat
  • N. Aspiotis
  • M. Vasileiadis
  • G. Mousdis
  • S. Pispas
  • N. Vainos
  • C. Riziotis
Conference paper
Part of the NATO Science for Peace and Security Series C: Environmental Security book series (NAPSC)

Abstract

In this work, the study and development of photonic sensors using as sensitive material new nanostructured inorganic/organic hybrid optical materials and polymers is presented. Particularly, the development of some diffractive optical sensors based on inorganic salts (NiCl2, CuCl2) dissolved in sol-gel matrices, or by utilizing a novel amphiphilic diblock copolymer material, namely, poly(styrene sulfonate-b-tert-butylstyrene) (SPS-b-PtBS)is discussed. Soft lithography techniques were employed for the fabrication of the diffraction gratings followed by proper tailoring of the sensing materials to optimize sensors’ response. The gas sensors were successfully tested in the detection of ammonia and aromatic hydrocarbons (benzene, toluene) achieving a relative low detectable analyte concentration (down to 30 ppm). The obtained results confirm the efficient and low cost implementation of point gas sensors for a variety of analytes. By further optimization of the fabrication technique for the diffraction gratings and by employing also customizable sensitive materials, this sensing approach could attract a lot of interest in various applications.

Keywords

Diffraction Efficiency Diffraction Grating Sensitive Material Photonic Sensor Amphiphilic Diblock Copolymer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

This work was funded by the R&D Project WelCOM 09SYN-71-856 (Wireless Sensors for Engineering Asset Life Cycle Optimal Management) funded by National Strategic Reference Framework NSRF 2007-2013/Hellenic General Secretariat for Research and Technology GSRT. Financial support of this work by the General Secretariat for Research and Technology, Greece (project Polynano-Kripis 447963) is gratefully acknowledged.

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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  • A. El Sachat
    • 1
    • 2
  • N. Aspiotis
    • 3
  • M. Vasileiadis
    • 1
    • 3
  • G. Mousdis
    • 1
  • S. Pispas
    • 1
  • N. Vainos
    • 3
  • C. Riziotis
    • 1
  1. 1.National Hellenic Research FoundationTheoretical and Physical Chemistry InstituteAthensGreece
  2. 2.Catalan Institute of Nanoscience and Nanotechnology (ICN2)BellaterraSpain
  3. 3.Department of Materials ScienceUniversity of PatrasPatrasGreece

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