Abstract
Thick films of AR grade ZnO were prepared by screen-printing technique. The gas sensing performances of thick films were tested for various gases. It showed maximum sensitivity to CO gas at 100 oC for 100ppm gas concentration. To improve the sensitivity and selectivity of the film towards a particular gas, ZnO thick films were surface modified by dipping them in a solution of nano silver for different intervals of time. These surface modified ZnO films showed larger sensitivity to H2S gas (100ppm) than pure ZnO film at 300 oC. Nano silver on the surface of the film shifts the reactivity of film from CO to H2S gas. A systematic study of sensing performance of the sensor indicates the key role-played by the nano silver species on the surface.The sensitivity, selectivity, response and recovery time of the sensor were measured and presented.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Takao, Y., Miyazaki, K., Shimizu, Y., Egashira, M.: High ammonia sensitive semiconductor gas sensors with double layer structure and interface electrode. J. Electrochem. Sco. 141, 1028–1034 (1994)
Nanto, H., Sokooshi, H., Kawai, T.: Aluminium –doped ZnO thin film gas sensors capable of detecting freshness of sea food. Sens. Actuators 14, 175–717 (1994)
Seiyama, T., Kato, A., Fujiishi, K., Nagatani, M.: A new detector for gaseous components using semiconductive thin films. Anal. Chem. 34, 1502–1503 (1962)
Yamazoe, N., Sakai, G., Shimaone, K.: Oxide semiconductor gas sensors. Catal. Surveys Asia 1, 63–75 (2003)
Kwon, T., Park, S., Ryu, J., Choi, H.: Zinc Oxide thin film doped with Al2O3,TiO2 and V2O5 as sensitive sensors for trimethylamine gas. Sen. Actuators 46, 75–79 (1998)
Rao, G., Rao, D.: Gas sensitivity of ZnO based thick film sensors to NH3 at room temperature. Sens. Actuators 55, 166–169 (1999)
Basu, S., Datta, A.: Room temperature hydrogen sensors based on ZnO. Mater. Chem. Phy. 47, 93–97 (1997)
Park, C.O., Akbar, S.A., Hwang, J.: Selective gas detection with catalytic filter. Mater. Chem. Phys. 75, 56–60 (2002)
Sciliano, P.: Preparation, Characterisation and Application of thin films foe Gas sensors by cheap chemical method. Sens. Actuators 70, 153–164 (2000)
Ogawa, H., Nishikawa, M., Abe, A.: Hall measurement and an electrical conduction model of Tin oxide ultra fine particle films. J. Appl. Phys. 53, 4448–4450 (1982)
Yamazoe, N.: New approach for improving semiconductor gas sensors. Sens. Actuators 5, 7–19 (1991)
de Lacy Costello, B.P.J., Ewen, R.J., Ratcliffe, N.M.: Highly sensitive mixed oxide sensors for the detection of ethanol. Sens. Actuators 87, 207–210 (2002)
Penza, M., Martucci, C., Cassano, G.: Nox gas sensing characteristics of WO3 thin film activated by noble metals (Pd, Pt, Au, Ag) layers. Sensors and Actuators 50, 52–59 (1998)
Korotechnov, G., Brynzari, V., Dmitriev, S.: SnO2 film for thin film gas sensor design. Mater. Sci. Eng. 56, 195–204 (1999)
Servent, A.M., Rickerby, D.G., Horrillo, M.C., Saint-Jacques, R.G., Guitierrez, J.: Transmission electron microscopy investigation of SnO2 thin films for sensor devices. Nanostruct. Mater. 11, 813–819 (1999)
Kaciulis, S., Pandolfi, L., Viticoli, S., Sberveglieri, G., Zampiceni, E., Wlodarski, W., Galatsis, K., Li, Y.X.: Investigation of thin films of mixed oxides for gas-sensing applications. Surf. Interface Anal. 34, 672–676 (2002)
Khanna, P.K., Singh, N., Kulkarni, D., Deshmukh, S., Charan, S., Adhyapak, P.V.: Water based simple synthesis of re-dispersible silver nano-particles. Materials Letters 61, 3366–3370 (2007)
Roy Morrison, S.: Mechanism of semiconductor gas sensor operation. Sens. Actuators 11, 283–287 (1987)
Khanna, P.K., Singh, N.D., Kulkarni, R., Marimuthu, S.: One-step preparation of nanosized Ag-Pd co-powder and its allformation at low temperature, Synthesis and Reactivity in Inorganic. Metal-Organic and Nano-Metal Chemistry 37, 1–9 (2007)
Schierbaum, K.D., kirner, U.K., Geiger, J.F., Gopel, W.: Schottky- barrier and conductive gas sensors based upon Pd/SnO2 and Pt/Tio2. Sens. Actuators 4, 87–94 (1991)
Jain, G.H., Gaikwad, V.B., Kajale, D.D., Chaudhari, R.M., Patil, R.L., Pawar, N.K., Deore, M.K., Shinde, S.D., Patil, L.A.: Gas sensing performance of pure and modified BST thick film resistor. Sensors and Transducers 90, 160–173 (2008)
Jain, G.H., Gaikwad, V.B., Patil, L.A.: Studies on gas sensing performance of (Ba0.8Sr0.2) (Sn0.8Ti0.2) O3 thick film resistors. Sens. Actuators 122, 605–612 (2007)
Patil, D.R., Patil, L.A., Amalnerkar, D.P.: Ethanol gas sensing properties of Al2O3-dopped ZnO thick ilm resistors. Bull. Mater. Sci. 30(6), 553–559 (2007)
Wagh, M.S., Jain, G.H., Patil, D.R., Patil, S.A., Patil, L.A.: Modified Zinc oxide thick film resistor as NH3 gas sensor. Sens. Actuaors B115, 128–133 (2006)
Jain, G.H., Patil, L.A., Wagh, M.S., Patil, D.R., Patil, S.A., Amalnerkar, D.P.: Surface modified BaTiO3 thick film resistors as H2S gas sensors. Sens. Actuators 117, 159–165 (2006)
Ishihara, T., Kometani, K., Hashada, M., Takita, Y.: Application of mixed oxide capacitor to the selective carbon dioxide sensor. J. Electrochem. Soc. 138, 173–175 (1991)
Maosang, T., Dai, G.R., Gao, D.S.: Surfacemodification of oxide thin film and its gas sensing properties. Appl. Surf. Sci. 171, 226–230 (2001)
Chu, X.F., Jiang, D.L., Guo, Y., Zheng, C.M.: Ethenol gas sensor based on CoFe2O4 nano crystallines prepared by hydrothermal method. Sens. Actuators 120, 177–181 (2006)
Liu, Y.L., Wang, H., Liu, Z.M., Yang, H.F., Shen, G.L., Yu, R.Q.: Hydrogen Slfied sensing properties of NiFeO4 nanopowder doped with nobel metal. Sens. Actuators 102, 148–154 (2004)
Göpel, W.: Chemisorptions and charge transfer at ionic semiconductor surface. Progr. Surf. Sci. 20, 9–103 (1985)
Willett, M.J.: Spectroscopy of surface reactions. In: Mosely, P.T., Norris, J., Williams, D.E. (eds.) Techniques and Mechanism in Gas Sensing, Adam Hilger, Bristol (1991)
Lampe, U., Garblinger, M.J.H.: Carbon monoxide sensor based on thin films of BaSnO3. Sens. Actuators 25, 657–660 (1995)
Kabayashi, T.M., Haruta, S.H., Nakane, M.: A selective CO sensing Ti-doped α-Fe2O3 with co-precipitated ultrafine particles of gold. Sens. Actuators 13, 339–348 (1988)
Hu, Y., Tan, O.K., Cao, W., Zhu, W.: Fabrication and characterization of nano-sized SrTiO3-based oxygen sensor for near room-temperature operation. Sensors 5, 825–832 (2005)
Chang, J.F., Kuo, H.H., Leu, I.C., Hon, M.H.: The effect of thickness and operation temperature on ZnO –Al thin film CO gas sensor. Sens. Actuators 84, 258–264 (2002)
Yamazoe, N.: New approaches for improving semiconductor gas sensors. Sens. Actuators 5, 7–19 (1991)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Gaikwad, V.B. et al. (2009). Studies on Gas Sensing Performance of Pure and Nano- Ag Doped ZnO Thick Film Resistors. In: Mukhopadhyay, S.C., Gupta, G.S., Huang, R.YM. (eds) Recent Advances in Sensing Technology. Lecture Notes in Electrical Engineering, vol 49. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-00578-7_18
Download citation
DOI: https://doi.org/10.1007/978-3-642-00578-7_18
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-00577-0
Online ISBN: 978-3-642-00578-7
eBook Packages: EngineeringEngineering (R0)