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  • Received: Jul. 28, 2020

    Accepted: Sep. 15, 2020

    Posted: Dec. 1, 2020

    Published Online: Dec. 3, 2020

    The Author Email: Abliz Yimit (ablizy@sina.com)

    DOI: 10.3788/AOS202040.2428001

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    Wumaier Kediliya, Mamtimin Gulgina, Sulaiman Maimaitiaisha, Nizamidin Patima, Yimit Abliz. Highly-Sensitive Hydrogen-Sulfide Gas Sensor Based on Composite Optical Waveguide[J]. Acta Optica Sinica, 2020, 40(24): 2428001

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Acta Optica Sinica, Vol. 40, Issue 24, 2428001 (2020)

Highly-Sensitive Hydrogen-Sulfide Gas Sensor Based on Composite Optical Waveguide

Kediliya Wumaier1, Gulgina Mamtimin2, Maimaitiaisha Sulaiman1, Patima Nizamidin1, and Abliz Yimit1,*

Author Affiliations

  • 1School of Chemical Engineering and Technology, Xinjiang University, Urumqi, Xinjiang 830046, China
  • 2College of Chemistry and Environmental Science, Kashgar University, Kashgar, Xinjiang 844006, China

Abstract

In this paper, a TiO2 film/tin-diffused glass composite optical waveguide (OWG) component is prepared by the dip-coating method, and a zinc phthalocyanine (ZnPc) sensitive layer is fixed on the surface by the spin coating method to prepare a highly-sensitive hydrogen sulfide (H2S) gas sensor based on a composite OWG. The preparation conditions of sensors is optimized. When the dip-coating speed of the dip coater is 80 mm·min -1, the rotating speed of the spin coater is 1600 r·min -1, and the mass fraction of the ZnPc solution is 0.05%, the sensor has the best selective response to H2S gas and can detect the H2S gas with a volume fraction of 1×10 -9. In addition, the sensor shows good stability within one month.

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