Synthesis, Crystal Structural and Electrical Conductivity Properties of Fe-Doped Zinc Oxide Powders at High Temperatures

J Mater Sci Technol ›› 2012, Vol. 28 ›› Issue (3): 268-274.

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Synthesis, Crystal Structural and Electrical Conductivity Properties of Fe-Doped Zinc Oxide Powders at High Temperatures

Hakan Colak^1,2), Orhan Turkoglu

1) Department of Chemistry, Science of Faculty, University of Erciyes, Kayseri, 38039, Turkey
2) Deparment of Chemistry, Science of Faculty, University of Cankiri Karatekin, Ballca Campus, Cankiri, 18200, Turkey

Received:2010-12-31 Revised:2011-03-05 Online:2012-03-31 Published:2012-03-31
Contact: Hakan COLAK

Abstract

Abstract: The synthesis, crystal structure and electrical conductivity properties of Fe-doped ZnO powders (in the range of 0.25-15 mol%) were reported in this paper. I-phase samples, which were indexed as single phase with a hexagonal (wurtzite) structure in the Fe-doped ZnO binary system, were determined by X-ray diffraction (XRD). The solubility limit of Fe in the ZnO lattice is 3 mol% at 950 °C. The above mixed phase was observed. And the impurity phase was determined as the cubic-ZnFe₂O₄ phase when compared with standard XRD data using the PDF program. This study focused on single I-phase ZnO samples which were synthesized at 950 °C because the limit of the solubility range is the widest at this temperature. The lattice parameters a and c of
the I-phase decreased with Fe-doping concentration. The morphology of the I-phase samples was analyzed with a scanning electron microscope. The grain size of the I-phase samples increased with heat treatment and doping concentration. The electrical conductivity of the pure ZnO and single I-phase samples was investigated using the four-probe dc method at 100{950 °C in air atmosphere. The electrical conductivity values of pure ZnO, 0.25 and 3 mol% Fe-doped ZnO samples at 100 °C were 2×10^-6, 1.7×10^-3 and 6.3×10^-4 S?cm^-1, and at 950 °C they were 3.4, 8.5 and 4 S?cm^-1, respectively.

Key words: II-VI semiconductors, Zinc oxide and doped zinc oxide, Four point probe method

Hakan Colak, Orhan Turkoglu. Synthesis, Crystal Structural and Electrical Conductivity Properties of Fe-Doped Zinc Oxide Powders at High Temperatures[J]. J Mater Sci Technol, 2012, 28(3): 268-274.

References

[1 ] S.Y. Chu, T.M. Yan and S.L. Chen: Ceram. Int., 2000, 26(7), 733.

[2 ] V.R. Shinde, T.P. Gujar, C.D. Lokhande, R.S. Mane and S.H. Han: Mater. Chem. Phys., 2006, 96(2), 326.

[3 ] S.J. Pearton, D.P. Norton, K. Ip and Y.W. Heo: Prog. Mater. Sci., 2005, 50(3), 293.

[4 ] Z. Zhou, K. Kato, T. Komaki, M. Yoshino, H. Yukawa, M. Morinaga and K. Morita: J. Eur. Ceram. Soc., 2004, 24, 139.

[5 ] B.J. Copa: Electrical, Chemical and Structural Characterization of Au-Schottky Contacts on Remote Plasma-Treated n-Type f0001g, Ph.D. Thesis, North Carolina State University, 2003.

[6 ] D.W. Zeng, C.S. Xie, B.L. Zhu, B.L. Song and H. Wang: Mater. Sci. Eng. B, 2003, 104(1-2), 68.

[7 ] R. Maity, S. Kundoo and K.K. Chattopadhyay: Sol. Energy Mater. Sol. Cells, 2005, 86(2), 217.

[8 ] P. Nunes, E. Fortunato, P. Vilarinho and R. Martins: Vacuum, 2002, 64(3-4), 281.

[9 ] S.V. Bhat and F.L. Deepak: Solid State Commun., 2005, 135(6), 345.

[10] L. Wang, Y. Pu, W. Fang, J. Dai, C. Zheng, C. Mo and C. Xiong: Thin Solid Films, 2005, 491(1-2), 323.

[11] A. Sawalha, M. Abu-Abdeen and A. Sedky: Physica B, 2009, 404(8-11), 1316.

[12] X. Mao, W. Zhong and Y. Du: J. Magn. Magn. Mater., 2008, 320(6), 1102.

[13] O.K. Scherger, H. Schmid, N. Vanderschaeghe, F.Wolf and W. Mader: J. Am. Ceram. Soc., 2007, 90(12), 3984.

[14] A.J. Chen, X.M. Wu, Z.D. Sha, L.J. Zhuge and Y.D. Meng: J. Phys. D: Appl. Phys., 2006, 39, 4762.

[15] M. Zhang, L.M. Cao, F.F. Xu, Y. Bando and W.K. Wang: Thin Solid Films, 2002, 406(1-2), 40.

[16] G.Y. Ahn, S.I. Park, S.J. Kim, B.W. Lee and C.S. Kim: IEEE T. Magn., 2005, 41, 2730.

[17] R. Wang and A.W. Sleight: J. Solid State Chem., 1996, 125, 224.

[18] R. Kumar, A.P. Singh, P. Thakur, K.H. Chae, W.K. Choi, B. Angadi, S.D. Kaushik and S. Patnaik: J. Phys. D: Appl. Phys., 2008, 41(15), 155002.

[19] H. Colak and O. Turkoglu: J. Mater. Sci. Technol., 2011, 27(10), 944.

[20] ÄU. ÄOzgÄur, Y.I. Alivov, C. Liu, A. Teke, M.A. Reshchikov, S. Do·gan, V. Avrutin, S.J. Cho and H. Morko»c: J. Appl. Phys., 2005, 98, 041301.

[21] D. Karmakar, S.K. Mandal, R.M. Kadam, P.L. Paulose, A.K. Rajarajan, T.K. Nath, A.K. Das, I. Das-gupta and G.P. Das: Phys. Rev. B, 2007, 75(14), 144404.

[22] H. Liu, J. Yang, Y. Zhang, Y. Wang and M. Wei: Mater. Chem. Phys., 2008, 112(3), 1021.

[23] R.C.Weast: Handbook of Chemistry and Physics, 56th edn, CRC Press, 1975-1976.

[24] Y. Zhang, L. Wu, H. Li, J. Xu, L. Han, B. Wang, Z. Tuo and E. Xie: J. Alloy. Compd., 2009, 473(1-2), 319.

[25] X.X. Wei, C. Song, K.W. Geng, F. Zeng, B. He and F. Pan: J. Phys. Condens. Matter., 2006, 18, 7471.

[26] K. Park and K.Y. Ko: J. Alloy. Compd., 2007, 430(1-2), 200.

[27] S. Yilmaz, O. Turkoglu and Belenli: Mater. Chem. Phys., 2008, 112, 472.

[28] M. Girtan, G.G. Rusu, S.D. Seignon and M. Rusu: Appl. Surf. Sci., 2008, 254(13), 4179.

[29] J. Han, A.M.R. Senos and P.Q. Mantas: J. Eur. Ceram. Soc., 2002, 22, 49.

[30] M.S. Hossain, R. Islam and K.A. Khan: Chalcogenide Lett., 2008, 5, 1.

[31] M.L. Dinesha, H.S. Jayanna, S. Ashoka and G.T. Chandrappa: J. Alloy. Compd., 2009, 485(1-2), 538.

[32] N. Ohashi, Y. Terada, T. Ohgaki, S. Tanaka, T. Tsurumi, O. Fukunage, H. Haneda and J. Tanaka: Jpn. J. Appl. Phys., 1999, 38, 5028.

[33] F. Oba, I. Tanaka and H. Adachi: Jpn. J. Appl. Phys., 1999, 38, 3569.

[34] P.Q. Mantas and J.L. Baptista: J. Eur. Ceram. Soc., 1995, 15, 605.

[35] J. Han, P.Q. Mantas and A.M.R. Senos: J. Eur. Ceram. Soc., 2001, 21(10-11), 1883.

[36] Y. Natsume and H. Sakata: Thin Solid Films, 2000, 372(1-2), 30.

Synthesis, Crystal Structural and Electrical Conductivity Properties of Fe-Doped Zinc Oxide Powders at High Temperatures

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