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Research on highly sensitive humidity sensor based on Tr-MWCNT/HEC composite films

Published online by Cambridge University Press:  17 November 2014

Dayue Wang ,
Ying Huang Open the ORCID record for Ying Huang [Opens in a new window] ,
Yangyang Ma ,
Ping Liu ,
Caixia Liu  and
Yugang Zhang
Dayue Wang
Affiliation:
School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, People's Republic of China
Ying Huang*
Affiliation:
School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, People's Republic of China; and Institute of Intelligence Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
Yangyang Ma*
Affiliation:
School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, People's Republic of China
Ping Liu
Affiliation:
School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, People's Republic of China
Caixia Liu
Affiliation:
School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, People's Republic of China
Yugang Zhang
Affiliation:
School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, People's Republic of China
*
a)Address all correspondence to this author. e-mail: hf.hy@163.com
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Abstract

This study demonstrates a highly sensitive humidity sensor based on treated multiwalled carbon nanotube (tr-MWCNT) and hydroxyethyl cellulose (HEC) composite films. Tr-MWCNTs are obtained by mixed acid treatment to enhance their hydrophilicity and improve their dispersion in distilled water. Compared to tr-MWCNT/silicone rubber (SR) composite film, the humidity sensitivity of tr-MWCNT/HEC film is much higher than tr-MWCNT/SR film with the same film thickness. The humidity sensing mechanisms of tr-MWCNT/HEC composites are explained by electron donation model and swelling mechanism. Speaking and blowing experiments were also carried out and the results show that tr-MWCNT/HEC composite film is sensitive to both speaking and blowing; furthermore, it can distinguish the small humidity level difference between speaking and blowing. Other sensing characteristics, including response and recovery time, stability, and temperature effect, are also investigated. The high humidity sensitivity of tr-MWCNT/HEC composite film indicates that it can be an excellent humidity sensitive material.

Keywords

resistive sensorhumidity sensorMWCNTsHECcomposite
Type
Articles
Information
Journal of Materials Research , Volume 29 , Issue 23 , 14 December 2014 , pp. 2845 - 2853
Copyright
Copyright © Materials Research Society 2014 

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References

REFERENCES

Lee, C.Y. and Lee, G.B.: Humidity sensors: A review. Sens. Lett. 3, 1 (2005).Google Scholar
Kulwicki, B.M.: Humidity sensors. J. Am. Ceram. Soc. 74, 697 (1991).CrossRefGoogle Scholar
Yamazoe, N. and Shimizu, Y.: Humidity sensors: Principles and applications. Sens. Actuators 10, 379 (1986).CrossRefGoogle Scholar
Sakai, Y., Sadaoka, Y., and Matsuguchi, M.: Humidity sensors based on polymer thin films. Sens. Actuators, B 35, 85 (1996).CrossRefGoogle Scholar
Traversa, E.: Ceramic sensors for humidity detection: The state-of-the-art and future developments. Sens. Actuators, B 23, 135 (1995).CrossRefGoogle Scholar
Iijima, S.: Helical microtubules of graphitic carbon. Nature 354, 56 (1991).CrossRefGoogle Scholar
Chen, W.P., Zhao, Z.G., Liu, X.W., Zhang, Z.X., and Suo, C.G.: A capacitive humidity sensor based on multi-wall carbon nanotubes (MWCNTs). Sensors 9, 7431 (2009).CrossRefGoogle ScholarPubMed
Saleem, M., Karimov, K.S., Karieva, Z.M., and Mateen, A.: Humidity sensing properties of CNT–OD–VETP nanocomposite films. Phys. E 43, 28 (2010).CrossRefGoogle Scholar
Yeow, J.T.W. and She, J.P.M.: Carbon nanotube-enhanced capillary condensation for a capacitive humidity sensor. Nanotechnology 17, 5441 (2006).CrossRefGoogle Scholar
Su, P.G., Sun, Y.L., and Lin, C.C.: A low humidity sensor made of quartz crystal microbalance coated with multi-walled carbon nanotubes/Nafion composite material films. Sens. Actuators, B 115, 338 (2006).CrossRefGoogle Scholar
Zhang, Y., Yu, K., Xu, R., Jiang, D., Luo, L., and Zhu, Z.: Quartz crystal microbalance coated with carbon nanotube films used as humidity sensor. Sens. Actuators, A 120, 142 (2005).CrossRefGoogle Scholar
Chen, H.W., Wu, R.J., Chan, K.H., Sun, Y.L., and Su, P.G.: The application of CNT/Nafion composite material to low humidity sensing measurement. Sens. Actuators, B 104, 80 (2005).CrossRefGoogle Scholar
Matsuguch, M., Kuroiwa, T., Miyagishi, T., Suzuki, S., Ogura, T., and Sakai, Y.: Stability and reliability of capacitive-type relative humidity sensors using crosslinked polyimide films. Sens. Actuators, B 52, 53 (1998).CrossRefGoogle Scholar
Kim, J.H., Hong, S.M., Lee, J.S., Moon, B.M., and Kim, K.: High sensitivity capacitive humidity sensor with a novel polyimide design fabricated by MEMS technology. In Nano/Micro Engineered and Molecular Systems, 2009. 4th IEEE International Conference on NEMS 2009, IEEE, pp. 703–706.CrossRefGoogle Scholar
Liu, L., Ye, X., Wu, K., Han, R., Zhou, Z., and Cui, T.: Humidity sensitivity of multi-walled carbon nanotube networks deposited by dielectrophoresis. Sensors 9, 1714 (2009).CrossRefGoogle ScholarPubMed
Slobodian, P., Riha, P., Lengálová, A., Svoboda, P., and Sáha, P.: Multi-wall carbon nanotube networks as potential resistive gas sensors for organic vapor detection. Carbon 49, 2499 (2011).CrossRefGoogle Scholar
Wong, Y.M., Kang, W.P., Davidson, J.L., Wisitsora-At, A., and Soh, K.L.: A novel microelectronic gas sensor utilizing carbon nanotubes for hydrogen gas detection. Sens. Actuators, B 93, 327 (2003).CrossRefGoogle Scholar
Cao, C.L., Hu, C.G., Fang, L., Wang, S.X., Tian, Y.S., and Pan, C.Y.: Humidity sensor based on multi-walled carbon nanotube thin films. J. Nanomater. 2011, 5 (2011).CrossRefGoogle Scholar
Su, P.G. and Wang, C.S.: In situ synthesized composite thin films of MWCNTs/PMMA doped with KOH as a resistive humidity sensor. Sens. Actuators, B 124, 303 (2007).CrossRefGoogle Scholar
Muto, S., Suzuki, O., Amano, T., and Morisawa, M.: A plastic optical fibre sensor for real-time humidity monitoring. Meas. Sci. Technol. 14, 746 (2003).CrossRefGoogle Scholar
Harun, S., Batumalay, M., Lokman, A., Arof, H., Ahmad, H., and Ahmad, F.: Tapered plastic optical fiber coated with HEC/PVDF for measurement of relative humidity. IEEE Sens. J. 13, 4702 (2013).Google Scholar
Xia, L., Li, L., Li, W., Kou, T., and Liu, D.: Novel optical fiber humidity sensor based on a no-core fiber structure. Sens. Actuators, A 190, 1 (2013).CrossRefGoogle Scholar
Xiong, J., Zheng, Z., Qin, X., Li, M., Li, H., and Wang, X.: The thermal and mechanical properties of a polyurethane/multi-walled carbon nanotube composite. Carbon 44, 2701 (2006).CrossRefGoogle Scholar
Yu, H., Cao, T., Zhou, L., Gu, E., Yu, D., and Jiang, D.: Layer-by-layer assembly and humidity sensitive behavior of poly (ethyleneimine)/multiwall carbon nanotube composite films. Sens. Actuators, B 119, 512 (2006).CrossRefGoogle Scholar
Yoo, K.P., Lim, L.T., Min, N.K., Lee, M.J., Lee, C.J., and Park, C.W.: Novel resistive-type humidity sensor based on multiwall carbon nanotube/polyimide composite films. Sens. Actuators, B 145, 120 (2010).CrossRefGoogle Scholar
Tang, Q.Y., Chan, Y.C., and Zhang, K.: Fast response resistive humidity sensitivity of polyimide/multiwall carbon nanotube composite films. Sens. Actuators, B 152, 99 (2011).CrossRefGoogle Scholar
Jiang, W.F., Xiao, S.H., Feng, C.Y., Li, H.Y., and Li, X.J.: Resistive humidity sensitivity of arrayed multi-wall carbon nanotube nests grown on arrayed nanoporous silicon pillars. Sens. Actuators, B 125, 651 (2007).CrossRefGoogle Scholar
Chu, J., Peng, X., Feng, P., Sheng, Y., and Zhang, J.: Study of humidity sensors based on nanostructured carbon films produced by physical vapor deposition. Sens. Actuators, B 178, 508 (2013).CrossRefGoogle Scholar
Varghese, O.K., Kichambre, P.D., Gong, D., Ong, K.G., Dickey, E.C., and Grimes, C.A.: Gas sensing characteristics of multi-wall carbon nanotubes. Sens. Actuators, B 81, 32 (2001).CrossRefGoogle Scholar
Maiti, A., Andzelm, J., Tanpipat, N., and von Allmen, P.: Effect of adsorbates on field emission from carbon nanotubes. Phys. Rev. Lett. 87, 155502 (2001).CrossRefGoogle ScholarPubMed
Bruzzi, M., Miglio, S., Scaringella, M., Bongiorno, G., Piseri, P., Podesta, A., and Milani, P.: First study of humidity sensors based on nanostructured carbon films produced by supersonic cluster beam deposition. Sens. Actuators, B 100, 173 (2004).CrossRefGoogle Scholar
Hong, H.P., Jung, K.H., Kim, J.H., Kwon, K.H., Lee, C.J., Yun, K.N., and Min, N.K.: Percolated pore networks of oxygen plasma-activated multi-walled carbon nanotubes for fast response, high sensitivity capacitive humidity sensors. Nanotechnology 24, 085501 (2013).Google ScholarPubMed
Li, K., Zhang, C., Du, Z., Li, H., and Zou, W.: Preparation of humidity-responsive antistatic carbon nanotube/PEI nanocomposites. Synth. Met. 162, 2010 (2012).CrossRefGoogle Scholar
Lee, J., Cho, D., and Jeong, Y.: A resistive-type sensor based on flexible multi-walled carbon nanotubes and polyacrylic acid composite films. Solid-State Electron. 87, 80 (2013).CrossRefGoogle Scholar
Wang, Y., Park, S., Yeow, J.T., Langner, A., and Müller, F.: A capacitive humidity sensor based on ordered macroporous silicon with thin film surface coating. Sens. Actuators, B 149, 136 (2010).CrossRefGoogle Scholar