Characterization of NH\(_3\) Sensing Properties of P3HT+rGO+CNT Composite Films Made by Spin-coating

Authors

  • Lam Minh Long University of Engineering and Technology Vietnam National University Hanoi (VNU-UET)
  • Nguyen Nang Dinh University of Engineering and Technology Vietnam National University Hanoi (VNU-UET)
  • Tran Quang Trung University of Natural Science, VNU in Ho Chi Minh City

DOI:

https://doi.org/10.15625/0868-3166/28/4/12683

Keywords:

P3HT rGO CNT composite, surface morphology, UV-Vis spectra, NH3 gas sensors, sensing response.

Abstract

Thin films of poly(3-hexylthiophene) (P3HT) incorporated with reduced graphene oxide (rGO) and multi-walled carbon nanotubes (CNTs) were prepared by spin-coating technique. Atomic force microscope (AFM) surface morphology, UV-Vis spectra and NH3 gas sensing of the films were studied. Results showed that the P3HT embedded with a content of 20 wt.% of rGO and 10 % of CNTs (abbreviated to P3GC) resulted in the formation of nanostructured composites, exhibiting 1.50 nm-roughness surface and a semiconducting material with a bandgap of 1.92eV. These structure and composition of the P3GC film are appropriate for making film sensors whose resistance changes as a function of gas concentration. Monitoring ammonia gas by the sensors showed that the responding time of the sensing reached a value as fast as 30 s, the response at ammonia gas content of 10 ppm attained a value as large as 0.8% and the relative sensitivity was of 0.05 %/ppm.

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Author Biographies

Lam Minh Long, University of Engineering and Technology Vietnam National University Hanoi (VNU-UET)

Faculty of Engineering Physics & Nanotechnology

Nguyen Nang Dinh, University of Engineering and Technology Vietnam National University Hanoi (VNU-UET)

Faculty of Engineering Physics & Nanotechnology

Tran Quang Trung, University of Natural Science, VNU in Ho Chi Minh City

Department of Solid State Physics

References

T. Hibbard, K. Crowley, and A. J. Killard, Analytica Chimica Acta, 779 (2013) 6 – 63.

M. Gardon and J. M. Guilemany, Journal of Materials Science 24 (2013) 1410 – 1421.

J. Janata and M. Josowicz, Nature Materials 2 (2003) 19 – 24.

H. Bai and G. Shi, Sensors, 7 (2007) 267 – 307.

T. Patois, J.-B. Sanchez, and F. Bergeretal, Talanta 17 (2013) 45 – 54.

Y.-S. Lee, B.-S. Joo, N.-J. Choi, J.-O. Lim, J.-S. Huh, and D.-D. Lee, Sensors and Actuators B 93 (2003) 148 – 152.

S. Basu and P. Bhattacharyya, Sensors and Actuators B 173 (2012) 1 – 21.

P. T. Yin, T. H. Kim, J. W. Choi, and K. B. Lee, Physical Chemistry Chemical Physics 15 (2013) 12785 – 12799.

B. H. Chu, J. Nicolosi, C. F. Lo, W. Strupinski, S. J. Pearton, and F. Ren, Electrochemical and Solid State Letters 14 (2011) K43 – K46.

M. Zhang and Z. Wang, Applied Physics Letters 102 (2013) 213104 – 213106.

Lam Minh Long, Nguyen Nang Dinh, Hoang Thi Thu, Huynh Tri Phong, and Tran Quang Trung, VNU Journal of Science.: Mathematics. –Physics, 33 (2017) 52 – 60.

Lam Minh Long, Nguyen Nang Dinh, Tran Quang Trung, Journal of Nanomaterials 2016 (2016) Article ID 5849018, 6 pages.

Tran Thị Thao, Tran Quang Trung, Vo-Van Truong, Nguyen Nang Dinh, Journal of Nanomaterials, 2015 (2015) Article ID 463565, 7 pages.

N. Abu-Zahra and M. Algazzar, Journal of Solar Energy Engineering, 136/2 (2013) 021023-1 ÷ 021023-7.

L. Stobinski, B. Lesiaka, A. Malolepszyc, M. Mazurkiewiczc and B. Mierzwaa, Journal of Electron Spectroscopy and Related Phenomena, 195 (2014) 145 – 154.

B. D. Cullity, Elements of X-Ray diffraction, 2nd ed., p. 102, Addison-Wesley Publishing Company, Inc., Reading, MA, 1978.

B. M. Omer, Journal of Nano and Electronic Physics, 5 (2013) 03010-1 ÷ 03010-4.

Y. Wang, L. Zhang, N. Hu, Ying Wang, Y. Zhang, Z. Zhou, Y. Liu, S. Shen, and C. Peng, Nanoscale Research Letters, 9 (2014) Article 251 (12p).

O. K. Varghese, P. D. Kichambre, D. Gong, K. G. Ong, E. C. Dickey, and C. A. Grimes, Sensors and Actuators B, 81 (2001) 32 – 41.

L. Aba, Y. Yusuf, Mitrayana, and K. Triyana, Journal of Modern Physics, 3 (2012) 529 – 533.

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Published

27-12-2018

How to Cite

Long, L. M., Dinh, N. N., & Trung, T. Q. (2018). Characterization of NH\(_3\) Sensing Properties of P3HT+rGO+CNT Composite Films Made by Spin-coating. Communications in Physics, 28(4), 369. https://doi.org/10.15625/0868-3166/28/4/12683

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