On-chip ZnO nanofibers prepared by electrospinning method for NO2 gas detection

Van Hoang Nguyen; Van Dung Nguyen; Quang Dat Do; Thi Minh Nguyet Quan; Manh Hung Chu; Van Hieu Nguyen

doi:10.15625/0868-3166/27/4/10899

Author affiliations

Authors

Van Hoang Nguyen 1) International Training Institute for Materials Science (ITIMS)-HUST 2) Department of Materials Science and Engineering, Le Quy Don Technical University
Van Dung Nguyen International Training Institute for Materials Science (ITIMS)-HUST
Quang Dat Do International Training Institute for Materials Science (ITIMS)-HUST
Thi Minh Nguyet Quan International Training Institute for Materials Science (ITIMS)-HUST
Manh Hung Chu International Training Institute for Materials Science (ITIMS)-HUST
Van Hieu Nguyen International Training Institute for Materials Science (ITIMS)-HUST

DOI:

https://doi.org/10.15625/0868-3166/27/4/10899

Keywords:

Zinc oxide, nanofibers, electrospinning, NO2 sensing

Abstract

In the present study, on-chip ZnO nanofibers were fabricated by means of the electrospinning technique followed by a calcination process at 600 ^oC towards the gas sensor application. The morphology, composition, and crystalline structure of the as-spun and annealed ZnO nanofibers were investigated by field emission scanning electron microscopy (FESEM), energy dispersive X-ray (EDX), and X-ray diffraction (XRD), respectively. The findings show that spider-net like ZnO nanofibers with a diameter of 60 – 100 nm were successfully synthesized without any incorporation of impurities into the nanofibers. The FESEM images also reveal that each nanofiber is composed of many nanograins. The combination of experimental and calculated X-ray diffraction data indicate that ZnO nanofibers were crystallized in hexagonal wurtzite structure. For the gas sensing device application, the ZnO nanofibers-based sensors were tested with the nitrogen dioxide gas in the temperature range of 200 ^oC to 350 ^oC and concentrations from 2.5 ppm to 10 ppm. The sensing property results indicate that at the optimal working temperature of 300 ^oC, the ZnO nanofibers-based sensors exhibited a maximum response of 30 and 166 times on exposure of 2.5 and 10 ppm NO₂ gas, respectively. The presence of nanograins within nanofibers, which results in further intensification of the resistance modulation, is responsible for such high gas response.

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

References

R. Kumar, O. Al-Dossary, G. Kumar, and A. Umar, Nano-Micro Lett. 7, 97 (2015). DOI: https://doi.org/10.1007/s40820-014-0023-3

I. Sayago, M. Aleixandre, and J. P. Santos, 1 (2017).

L. Shi, A. J. T. Naik, J. B. M. Goodall, C. Tighe, R. Gruar, R. Binions, I. Parkin, and J. Darr, (2013).

M.-W. Ahn, K.-S. Park, J.-H. Heo, D.-W. Kim, K. J. Choi, and J.-G. Park, Sensors Actuators B Chem. 138, 168 (2009). DOI: https://doi.org/10.1016/j.snb.2009.02.008

Z. U. Abideen, A. Katoch, J. H. Kim, Y. J. Kwon, H. W. Kim, and S. S. Kim, Sensors Actuators, B Chem. 221, 1499 (2015). DOI: https://doi.org/10.1016/j.snb.2015.07.120

Y. Zhang, X. He, J. Li, Z. Miao, and F. Huang, Sensors Actuators, B Chem. 132, 67 (2008). DOI: https://doi.org/10.1016/j.snb.2008.01.006

X. Yang, C. Shao, H. Guan, X. Li, and J. Gong, Inorg. Chem. Commun. 7, 176 (2004). DOI: https://doi.org/10.1016/j.inoche.2003.10.035

A. Katoch, S. W. Choi, H. W. Kim, and S. S. Kim, J. Hazard. Mater. 286, 229 (2015). DOI: https://doi.org/10.1016/j.jhazmat.2014.12.007

T. Senthil and S. Anandhan, J. Colloid Interface Sci. 432, 285 (2014). DOI: https://doi.org/10.1016/j.jcis.2014.06.029

A. Di Mauro, M. Zimbone, M. E. Fragal??, and G. Impellizzeri, Mater. Sci. Semicond. Process. 42, 98 (2016). DOI: https://doi.org/10.1016/j.mssp.2015.08.003

P. Van Tong, N. D. Hoa, N. Van Duy, and N. Van Hieu, RSC Adv. 5, 25204 (2015). DOI: https://doi.org/10.1039/C5RA00916B

K. Thangavel, A. Balamurugan, T. Venkatachalam, and E. Ranjith Kumar, Superlattices Microstruct. 90, 45 (2016). DOI: https://doi.org/10.1016/j.spmi.2015.12.004

A. Zeuner, H. Alves, D. M. Hofmann, B. K. Meyer, M. Heuken, J. Bläsing, A. Krost, Appl. Phys. Lett., 2078, 10 (2014).

P. Rai and Y. T. Yu, Sensors Actuators, B Chem. 173, 58 (2012). DOI: https://doi.org/10.1016/j.snb.2012.05.068

D. Calestani, M. Zha, R. Mosca, A. Zappettini, M. C. Carotta, V. Di Natale, and L. Zanotti, Sensors Actuators, B Chem. 144, 472 (2010). DOI: https://doi.org/10.1016/j.snb.2009.11.009

H. U. Lee, K. Ahn, S. J. Lee, J. P. Kim, H. G. Kim, S. Y. Jeong, and C. R. Cho, Appl. Phys. Lett. 98, 11 (2011). DOI: https://doi.org/10.1063/1.3590202

A. Mirzaei, B. Hashemi, and K. Janghorban, J. Mater. Sci. Mater. Electron. 27, 3109 (2016). DOI: https://doi.org/10.1007/s10854-015-4200-z

C. Jin, S. Park, H. Kim, and C. Lee, Sensors Actuators B. Chem. 161, 223 (2012). DOI: https://doi.org/10.1016/j.snb.2011.10.023