Electrical Properties of Poly-N-Epoxypropylcarbazole/Vanadium Pentoxide Composite
DOI:
https://doi.org/10.18321/ectj255Abstract
In the present work the electrical properties of poly-N-epoxypropylcarbazole (PEPC) and vanadium pentoxide (V2O5) composite have been studied. The composite was formed by mixing of PEPC solution in benzene with V2O5 powder and stirring at room temperature. The composite solution was deposited on a dielectric substrate with copper electrodes and the Cu/PEPC-V2O5/Cu surface type film samples were fabricated. The Cu/V2O5/Cu samples were used as a reference where the films were deposited from the mixture of V2O5 powder in distilled water. Resistance-temperature relationship and voltage-current characteristics of the composite and V2O5 samples were studied by using conventional digital voltmeter and ammeter in the temperature range of 27-110 °C with an error of ±0.5%. It was observed that the DC electrical conductivity, activation energy and non-linearity of voltage-current characteristics of the samples are temperature dependent. It was found that the temperature dependence of electrical conductivity of the V2O5 samples on the whole obeys T-1/4 law whereas the PEPC-V2O5 ones show visible deviations from that. The PEPC-V2O5 samples may be used as thermistors as the temperature coefficient of their resistance is large and at 27 °C is equal to -4.7%/°C.
References
No. 4A, pp. 1210-1212.
(2). C.H. Chen and I. Shih, J. Mater. Sci.: Mater. Electron (2006), 17, pp. 1047-1053.
(3). M.M. El-Nahass, K.F. Abd-El-Rahman, A.A.M. Farag and A.A.A. Darwish, J. Organic Electronics, (2005), 6,
pp. 129-136.
(4). Sh. Smith and S.R. Forrest, Applied Physics Letters, (2004), Vol. 84, No. 24, pp. 5019-5021.
(5). J.M. Shaw and P.F. Seidler. IBM, J. Res. & Dev., (2001), Vol. 45, No. 1, pp. 3-9.
(6). Y.J. Liu, J.L. Schindler, D.C. DeGroot, C.R. Kannewurf, W. Hirpo and M.G. Kanatzidis, Chem. Mater., (1996), 8, pp. 525-534.
(7). F. Gutman, L.E. Lyons, "Organic semiconductors", Part A, Krieger Robert E. Publishing Company, Malabar, Florida, U.S.A, (1981), p. 125.
(8). F. Gutman, H. Keyzer, L.E. Lyons and R.B. Somoano "Organic semiconductors", Part B, Krieger Robert E. Publishing Company, Malabar, Florida, U.S.A, (1983), p. 125.
(9). Kh.M. Akhmedov, Kh.S. Karimov and M.I. Fiodorov, Geliotekhnika1-3: (1995), p.178.
(10). M.I. Fiodorov, Kh.M. Akhmedov and Kh.S. Karimov, Organic Solar Cells, TajikNIINTI, Dushanbe, Tajikistan, (1989), p. 14.
(11). Kh.S. Karimov, Kh.M. Akhmedov and A.M. Achourov, in L.L. Regel and W.R. Wilcox (ed.), Centrifugal materials processing, Plenum Press, New York, U.S.A, (1997), p. 257.
(12). Kh. Karimov, Kh. Akhmedov, M. Mahroof-Tahir, R.M. Gul and A. Ashurov, in L.L. Regel and Wilcox (ed.), Processing by centrifugation, Kluwer Academic, Plenum Publishers, New York, U.S.A, (2001), p. 93.
(13). Kh. Karimov, S. Bellingeri and Y. Abe, in L.L. Regel and W.R. Wilcox (ed.), Processing by centrifugation, Kluwer Academic, Plenum Publishers, New York, U.S.A, (2001), p. 99.
(14). Kh.S. Karimov, Kh.M. Akhmedov, R. Marupov, J. Valiev, I. Homidov, M.A Turaeva, M. Mahroof- Tahir and R. Gul, Journal of Tajikistan Academy of Sciences, (2001), 73, pp. 9-10.
(15). Kh.M. Akhmedov, Synthesis, properties and utilization of carbazolile contained polymers. D.Sc. Thesis, Institute of Chemistry of Academy of Sciences, Dushanbe, Tajikistan, (1998), p. 76.
(16). Kh.M. Akhmedov and Kh.S. Karimov, Carbazole compounds, "Donish" Dushanbe, Tajikistan, (2006), p. 63.
(17). K.V. Madhuri, K.S. Rao, S. Uthanna, B.S. Naidu, O.M. Hussain and J. Indian Inst. Sci., (2001), 81, pp. 653-658.
(18). G.W. Audevson and W.D. Compton, J. Chem. Physics, (1970), Vol. 52, No. 12, pp. 6166-6174.
(19). A.F. Gorodetsky and A.F. Kravchenko, Semiconductor Devices, V. Shkola, Moscow, (1986), p. 121.
Downloads
Published
How to Cite
Issue
Section
License
You are free to: Share — copy and redistribute the material in any medium or format. Adapt — remix, transform, and build upon the material for any purpose, even commercially.
Eurasian Chemico-Technological Journal applies a Creative Commons Attribution 4.0 International License to articles and other works we publish.
Subject to the acceptance of the Article for publication in the Eurasian Chemico-Technological Journal, the Author(s) agrees to grant Eurasian Chemico-Technological Journal permission to publish the unpublished and original Article and all associated supplemental material under the Creative Commons Attribution 4.0 International license (CC BY 4.0).
Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.