Characteristics of Nanoparticles-Based Chemical Sensors

Jason Stephens, A. K. Batra, James R. Currie

Department of Physics (Materials Science Group), College of Engineering, Technology and Physical Sciences, Alabama A&M University, Normal, Alabama 35762, U.S.A.
NASA, George C. Marshall Space Flight Center, Huntsville, Alabama 35812, U.S.A..

DOI: 10.4236/msa.2012.37063                

Abstract

Semiconducting nanoparticle tin oxide-based sensors have been prepared with a pressure load of 4, 6, 8, 10 tons and reinforced with carbon nanofibers (CNF) in SnO2 matrix. The SnO2/CNF sensor’s sensitivity for ethyl alcohol has in-creased by a factor of two, in compared with that of pure SnO2 8-ton pressed sensor with lower response time. These results open the way towards further optimized lower cost CNF nanocomposite sensors as compared with expensive tin oxide/carbon nanotubes sensors.

Keywords

Chemical Sensors; Tin Oxide; Nano-composites; Carbon Nanofiber

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	K. Ihokura and J. Watson, “The Stannic Oxide Gas Sen- sors,” CRC Press, Boca Raton, 1994.
[2]	G. Sberveglieri, “Gas Sensors: Principles, Operation and Developments,” Kluwer Academic Publishers, London, 1992.
[3]	S. W. Lee, P. P. Tsai and H. Chen, “Comparison Study of SnO2 Thin- and Thick-Film Gas Sensors,” Sensors and Actuators B, Vol. 67, No. 1-2, 2000, pp. 122-127. doi:10.1016/S0925-4005(00)00390-7
[4]	Th. Becker, S. Ahlers, C. B. Braunmuhl, G. Mulle and O. Kiesewetter, “Gas Sensing Properties of Thin- and Thick- Film Tin Oxide Materials,” Sensors and Actuators B, Vol. 77, No. 1-2, 2001, pp. 55-61. doi:10.1016/S0925-4005(01)00672-4
[5]	V. Guidi, et al., “Gas Sensing through Thick Film Tech- nology,” Sensors and Actuators B, Vol. 84, No. 1, 2002, pp. 72-77. doi:10.1016/S0925-4005(01)01077-2
[6]	B. P. L. Costello, R. J. Ewen, N. Guernion and N. M. Ractlife, “Highly Sensitive Mixed Oxide Sensors for the Detection of Ethanol,” Sensors and Actuators B, Vol. 87, No. 1, 2002, pp. 207-210. doi:10.1016/S0925-4005(02)00220-4
[7]	N. Choi, C. Shim, K. Song, D. Lee, J. Huh and D. Lee, “Classification of Workplace Gases Using Temperature Modulation of Two SnO2 Sensing Films on Substrate,” Sensors and Actuators B, Vol. 86, No. 2-3, 2002, pp. 251- 258. doi:10.1016/S0925-4005(02)00196-X
[8]	K.-W. Kima, P.-S. Choa, S.-J. Kima, J.-H. Lee, C.-Y. Kangb, J.-S. Kimb and S.-J. Yoon, “The Selective Detec- tion of C2H5OH Using SnO2–ZnO Thin Film Gas Sen- sors Prepared by Combinatorial Solution Deposition,” Sensors and Actuators B, Vol. 123, No. 1, 2007, pp. 318- 324. doi:10.1016/j.snb.2006.08.028
[9]	R. Leghrib, et al., “Gas Sensors Based on Multiwall Car- bon Nanotubes Decorated with Tin Oxide Nanoclusters,” Sensors and Actuators B, Vol. 145, No. 1, 2008, pp. 411- 416. doi:10.1016/j.snb.2009.12.044
[10]	J. Gong, J. Sun and Q. Chen, “Micromachined Sol-Gel Carbon Nanotubes/SnO2 Nanocomposite Hydrogen Sen- sor”, Sensors and Actuators B, Vol. 130, No. 2, 2008, pp. 829-835. doi:10.1016/j.snb.2007.10.051
[11]	N. V. Duy , N. V. Hieu, P. T. Huy and N. D. Chien, “Mixed SnO2/TiO2 Included with Carbon Nanotubes for Gas-Sensing Application,” Physica E, Vol. 41, No. 2, 2008, pp. 258-263. doi:10.1016/j.physe.2008.07.007
[12]	N. V. Hieu, N. A. P Duc, T. Trung, M. A. Tuan and N. C. Chien, “Gas-Sensing Properties of Tin Oxide Doped with Metal Oxide and Carbon Nanotubes: A Competitive Sen- sor for Ethanol and Liquid Petroleum,” Sensors and Ac- tuators B, Vol. 144, No. 2, 2010, pp. 450-456. doi:10.1016/j.snb.2009.03.043
[13]	J. H. Yu and G. M. Choi, “Electrical and CO Gas Sensing Properties of ZnO-SnO2 Composites,” Sensors and Ac- tuators B, Vol. 52, No. 3, 1998, pp. 251-256. doi:10.1016/S0925-4005(98)00275-5
[14]	J. R. Currie, “Studies of Metal Oxide Chemical Sensors for the Detection of Volatile Organic Compounds,” Ph.D. Thesis, AL A&M University, Normal, 2008.
[15]	H. Ogawa, A. Abe, A. M. Nishikawa and S. Hayakawa, “Electrical Properties of Tin Oxide Ultrafine Particle Films,” ECS Journal of Solid State Science and Technol- ogy, Vol. 28, 1985, p. 2020.
[16]	J. Xu , Q. Pan, Y. A. Shun and Z. Tian, “Grain Size Con- trol and Gas Sensing Properties of Tin Oxide,” Sensors and Actuators B, Vol. 66, No. 1-3, 2000, pp. 277-279. doi:10.1016/S0925-4005(00)00381-6
[17]	K. Arshak and I. Gaidan, “Development of a Novel Gas Sensor Based on Oxide Thick Films,” Materials Science and Engineering: B, Vol. 118, No. 1-3, 2005, pp. 44-49. doi:10.1016/j.mseb.2004.12.061
[18]	M. Kugishima, K. Shimanoe and N. Yamazoe, “C2H4O Sensing Properties of Thick-Film Sensor Using La2O3- Modified SnO2,” Sensors and Actuators B, Vol. 118, No. 1-2, 2006, pp. 171-176. doi:10.1016/j.snb.2006.04.053
[19]	S. S. Park and J. D. Mackenzie, “Thickness and Micro- structure Effects of Alcohol Sensing of Tin Oxide Thin Films,” Thin Solid Films, Vol. 274, No. 1-2, 1996, pp. 154-159. doi:10.1016/0040-6090(95)07075-3