<abstract xmlns="http://www.w3.org/1999/xhtml">Rapid NO2 gas sensor has been developed based on PbS nanoparticulate thin films synthesized by Successive Ionic Layer Adsorption and Reaction (SILAR) method at different precursor concentrations. The structural and morphological properties were investigated by means of X-ray diffraction and field emission scanning electron microscope. NO2 gas sensing properties of PbS thin films deposited at different concentrations were tested. PbS film with 0.25 M precursor concentration showed the highest sensitivity. In order to optimize the operating temperature, the sensitivity of the sensor to 50 ppm NO2 gas was measured at different operating temperatures, from 50 to 200 °C. The gas sensitivity increased with an increase in operating temperature and achieved the maximum value at 150 °C, followed by a decrease in sensitivity with further increase of the operating temperature. The sensitivity was about 35 % for 50 ppm NO2 at 150 °C with rapid response time of 6 s. T90 and T10 recovery time was 97 s at this gas concentration.</abstract>

Rapid NO2 gas sensor has been developed based on PbS nanoparticulate thin films synthesized by Successive Ionic Layer Adsorption and Reaction (SILAR) method at different precursor concentrations. The structural and morphological properties were investigated by means of X-ray diffraction and field emission scanning electron microscope. NO2 gas sensing properties of PbS thin films deposited at different concentrations were tested. PbS film with 0.25 M precursor concentration showed the highest sensitivity. In order to optimize the operating temperature, the sensitivity of the sensor to 50 ppm NO2 gas was measured at different operating temperatures, from 50 to 200 °C. The gas sensitivity increased with an increase in operating temperature and achieved the maximum value at 150 °C, followed by a decrease in sensitivity with further increase of the operating temperature. The sensitivity was about 35 % for 50 ppm NO2 at 150 °C with rapid response time of 6 s. T90 and T10 recovery time was 97 s at this gas concentration.

Chemically synthesized PbS Nano particulate thin films for a rapid NO2 gas sensor

Thin Film Materials Laboratory, Department of Physics, Shivaji University Kolhapur-416004, M.S.,

Department of Materials Science and Engineering, Chonnam National University, Gwangju-500757,

Defence Research & Development Establishment, Jhansi Road, Gwalior 474 002,

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Chemically synthesized PbS Nano particulate thin films for a rapid NO gas sensor

Rapid NO2 gas sensor has been developed based on PbS nanoparticulate thin films synthesized by Successive Ionic Layer Adsorption and Reaction (SILAR) method at...

Chemically synthesized PbS Nano particulate thin films for a rapid NO₂ gas sensor

Article Category: Research Article

Publié en ligne: 27 avr. 2016

Pages: 204 - 211

Reçu: 03 mars 2015

Accepté: 03 nov. 2015

DOI: https://doi.org/10.1515/msp-2016-0001

Mots clés
sensor,

© Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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Chemically synthesized PbS Nano particulate thin films for a rapid NO2 gas sensor

Article Category: Research Article

Publié en ligne: 27 avr. 2016

Pages: 204 - 211

Reçu: 03 mars 2015

Accepté: 03 nov. 2015

DOI: https://doi.org/10.1515/msp-2016-0001

Mots cléssensor,

© Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

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Fig. 8

Fig. 9

Fig. 10

Fig. 11

Fig. 12

Fig. 13

Fig. 14

Fig. 15

Chemically synthesized PbS Nano particulate thin films for a rapid NO₂ gas sensor

Mots clés
sensor,