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Fabrication and Study of Nickel Phthalocyanine based Surface Type Capacitive Sensors

Authors: Mutabar Shah, Muhammad Hassan Sayyad, Khasan S. Karimov

Abstract:

Thin films of Nickel phthalocynine (NiPc) of different thicknesses (100, 150 and 200 nm) were deposited by thermal evaporator on glass substrates with preliminary deposited aluminum electrodes to form Al/NiPc/Al surface-type capacitive humidity sensors. The capacitance-humidity relationships of the sensors were investigated at humidity levels from 35 to 90% RH. It was observed that the capacitance value increases nonlinearly with increasing humidity level. All measurements were taken at room temperature.

Keywords: Capacitive sensor, Humidity, Nickel phthalocyanine, Organic semiconductor.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.

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References:


[1] Kh. S. Karimov, M. H. Sayyad, M. Ali, M. N. Khan, S. A. Moiz, Khu. B. Khan, H. Farah and Z. M. Karieva, "Electrochemical Properties of Zn/Orange Dye Aqueous Solution/Carbon Cell", J. Power Sources, vol. 155, pp 475-477, 2006.
[2] A. Elahi, M. H. Sayyad, Kh. S. Karimov, Kh. Zakaullah and M. Saleem, "The Photo-Electrical Behavior of n-Si/Orange Dye, Vinyl-Ethynyl- Trimethyl-Piperidole/Conductive Glass Electrochemical Sensor", J. Optoelectronic Adv. Mater. - Rapid Comm.vol.1(7), pp. 333-338, 2007.
[3] M. H. Sayyad, Kh. S. Karimov, K. Ul Hasan, A. Elahi, M. Saleem, Kh. M. Akhmedov and Z. M. Karieva, "Electrical properties of TCNQ/V2O5 heterojunction", Optoelectronic Adv. Mater. - Rapid Comm. Vol.2 (3), pp. 170-175, 2008.
[4] Z. Ahmad, M. H. Sayyad, M. Saleem, Khasan S. Karimov, and Mutabar Shah, "Humidity dependent characteristics of methyl-red thin film based Ag/methyl-red/Ag surface type cell", Physica E. doi:10.1016/j.physe.2008.05.018
[5] M. Saleem, M. H. Sayyad, Kh. S. Karimov, Z. Ahmad, M. Shah, M. Yaseen, I. Khokhar and M. Ali, "Synthesis and photocapacitive studies of Cu(II) 5,10,15,20-tetrakis(4'-isopropylphenyl) porphyrin" J. Optoelectron. Adv. Mater., Vol.10 (6), pp. 1468-1472, 2008.
[6] F. Gutman and L. E. Lyons, Organic semiconductors Part A., Krieger Robert E, Florida U.S.A, 1981.
[7] F. Gutman, H. Keyzer, L. E. Lyons and R. B. Somoano, Organic semiconductors. Part B., Krieger Robert E, Florida, U.S.A,1983.
[8] Kh. S. Karimov, "Electric properties of tetracyanoquinodimethane ionradical salts crystals under hydrostatic pressure". (PhD Dissertation, A.F. Ioffe Physical Technical institute, St.-Petersburg, Russia, 1982.
[9] Kh. S. Karimov. "Electric properties of organic materials at deformation". (DSc Dissertation, Department of Heat Physics, Academy of Sciences, Tashkent, Uzbekistan 1994.
[10] M. I. Fiodorov, "Gas Sensor", Russia Patent 2124719, (1999).
[11] S. A. Moiz, S. Kh. Karimov and N. D. Gohar, "Orange dye thin film resistive hygrometers". Eurasian Chemico- Technological Journal, vol. 6, pp. 201-205 2004.
[12] S. A. Moiz, M. M. Ahmed, & Kh. S.Karimov, "Effect of temperature and humidity on electrical properties of organic semiconductor orange dye films deposited from solution", Japanese Journal Applied Physics, vol. 44, pp. 1199-1203, 2005.
[13] K.Y. Law, Chem. Rev. 93 (1993) 449.
[14] R. Taguchi, T. Cobayashi and J. Muta, J. Mater. Sci. Lett. 13 (1994) 1320.
[15] M. Madou, "Fundamentals of Microfabrication", CRC Press, Boca Raton, New York, 1995.
[16] M. Ali Omar, "Elementary Solid State Physics: Principles and Applications" Published by Pearson Education (Singapore), Pte.Ltd. 2002.
[17] Z. M. Rittersma, "Recent achievements in miniaturised humidity sensors-a review of transduction techniques", Sensors and Actuators A, vol. 96, pp. 196-210, 2002.