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Flexible single walled nanotube based chemical sensor for 2,4-dinitrotoluene sensing

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Abstract

In this work, we have attempted to fabricate flexible single walled carbon nanotube based sensor for detection of 2,4-dinitrotoluene (DNT) an explosive chemical. For analyte sensing study, the flexible sensor is fabricated by vacuum filtration method. These fabricated gas sensors are characterised by SEM and Raman spectroscopy. The sensor response is investigated toward the explosive chemicals which have NO2 group in their molecular structure. The fabricated sensor is able to detect the traces of DNT at room temperature. The sensor gives 0.28–0.32% repeatable response to 0.22 ppm of DNT. The response of sensor increases with increase in the vapour concentration of the DNT vapours.

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Acknowledgements

Authors gratefully acknowledge Dr. R. K. Sharma, Director, Solid State Physics Laboratory for the guidance and permission to publish the work and characterization group of Solid State Physics Laboratory for their kind help in sample characterization.

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Authors and Affiliations

  1. Solid State Physics Laboratory, Lucknow Road, Timarpur, Delhi, 110054, India

    Deepak Kumar, Pika Jha, Abhilasha Chouksey, P. K. Chaudhury & J. S. Rawat

  2. Department of Physics and Astrophysics, University of Delhi, Delhi, 110007, India

    Deepak Kumar & R. P. Tandon

  3. Guru Kashi University, Talwandi Sabo, Punjab, 151302, India

    Deepak Kumar

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  1. Deepak Kumar
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  2. Pika Jha
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  6. J. S. Rawat
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Correspondence to Deepak Kumar.

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Kumar, D., Jha, P., Chouksey, A. et al. Flexible single walled nanotube based chemical sensor for 2,4-dinitrotoluene sensing. J Mater Sci: Mater Electron 29, 6200–6205 (2018). https://doi.org/10.1007/s10854-018-8595-1

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  • DOI: https://doi.org/10.1007/s10854-018-8595-1

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