Structural and Electrical Properties of Silver-Doped Zinc Oxide Nanorods Array

Abstract:

In this study, silver-doped zinc oxide (ZnO) nanorods were grown by a solution method and the effect of varying the doping concentration on the electrical property and component characteristics of the synthesized ZnO nanorods were studied. The ZnO nanorods were grown in the mixed solution of zinc nitrate hexahydrate (Zn (NO₃)₂·6H₂O), hexamethylenetetramine (C₆H₁₂N₄), and silver nitrate (AgNO₃) at 90^oC for 2 hours. The purpose of silver nitrate was to supply dopant atoms. Field-emission scanning electron microscopy (FE-SEM), energy dispersive spectrometer (EDS), X-ray diffraction (XRD) were used to investigate the surface morphology, chemical compositions, and microstructure of silver-doped ZnO nanorods, and the electrical properties were determined by Hall effect measurement. As found by EDS results, dopant atoms Ag have been successfully incorporated into the crystalline structure of ZnO nanorods, and the conductivity, concentration and mobility of majority carrier in ZnO nanorods have been modified accordingly.

• Periodical: Advanced Materials Research (Volume 1101)
• Pages: 164-168
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1101.164
• Online since: April 2015
• Authors: Shih Fong Lee, Li Ying Lee*, Yung Ping Chang
• Keywords: Ag Doping, Nanorods, Zinc Oxide (ZnO)

References

[1] R. N. Viswanath, S. Ramasamy, R. Ramamoorthy, P. Jayavel and T. Nagarajan, Preparation and characterization of nanocrystalline ZnO based materials for varistor applications, Nanostruct. Mater. 6 (1995) 993–996.

DOI: 10.1016/0965-9773(95)00229-4

[2] Y. Yang, X. Zeng, Y. Zeng, L. Liu and Q. Chen, Deposition of quasi-crystal Al-doped ZnO thin films for photovoltaic device applications, Appl. Surf. Sci. 257 (2010) 232–238.

DOI: 10.1016/j.apsusc.2010.06.073

[3] J. Chen, X. Yan, W. Liu and Q. Xue, The ethanol sensing property of magnetron sputtered ZnO thin films modified by Ag ion implantation, Sens. Actuators B 160 (2011) 1499.

DOI: 10.1016/j.snb.2011.08.026

[4] M. Q. Israr, J. R. Sadaf, M. H. Asif, O. Nur, M. Willander and B. Danielsson, Potentiometric cholesterol biosensor based on ZnO nanorods chemically grown on Ag wire, Thin Solid Films 519 (2010) 1106–1109.

DOI: 10.1016/j.tsf.2010.08.052

[5] M.H. Huang, S. Mao, H. Feick, H.Q. Yan, Y.Y. Wu, H. Kind, E. Weber, R. Russo and P.D. Yang, Room-temperature ultraviolet nanowire nanolasers, Sci. 292 (2001) 1897.

DOI: 10.1126/science.1060367

[6] C.R. Gorla, N.W. Emanetoglu, S. Liang, W.E. Mayo, Y. Lu, M. Wraback and H. Shen, Structural, optical, and surface acoustic wave properties of epitaxial ZnO films grown on (011-2) sapphire by metalorganic chemical vapor deposition, J. Appl. Phys. 85 (1999).

DOI: 10.1063/1.369577

[7] S.C. Minne, S.R. Manalis and C.F. Quate, Parallel atomic force microscopy using cantilevers with integrated piezoresistive sensors and integrated piezoelectric actuators, Appl. Phys. Lett. 67 (1995) 3918.

DOI: 10.1063/1.115317

[8] Z.L. Wang and J.H. Song, Piezoelectric nanogenerators based on zinc oxide nanowire arrays, Sci. 312 (2006) 242-246.

DOI: 10.1126/science.1124005

[9] J. Lang, Q. Han, J. Yang, C. Li, X. Li, L. Yang, Y. Zhang, M. Gao, D. Wang and J. Cao, Fabrication and optical properties of Ce-doped ZnO nanorods, J. Appl. Phys. 107 (2010) 074302.

DOI: 10.1063/1.3318613

[10] H.L. Yan, X.L. Zhong, J.B. Wang, G.J. Huang, S.L. Ding, G.C. Zhou and Y.C. Zhou, Cathodoluminescence and room temperature ferromagnetism of Mn-doped ZnO nanorod arrays grown by chemical vapor deposition, Appl. Phys. Lett. 90 (2007) 082503.

DOI: 10.1063/1.2460297

[11] S. Bayan and D. Mohanta, Directed growth characteristics and optoelectronic properties of Eu-doped ZnO nanorods and urchins, J. Appl. Phys. 108 (2010) 023512.

DOI: 10.1063/1.3462396

[12] M.N. Jung, J.E. Koo, S.J. Oh, B.W. Lee, W.J. Lee, S.H. Ha, Y.R. Cho and J.H. Chang, Influence of growth mode on the structural, optical, and electrical properties of In doped ZnO nanorods, Appl. Phys. Lett. 94 (2009) 041906.

DOI: 10.1063/1.3064919

[13] S. Khosravi-Gandomani, R. Yousefi, F. Jamali-Sheini and N.M. Huang, Optical and electrical properties of p-type Ag-doped ZnO nanostructures, Ceram. Intern. 40 (2014) 7957–7963.

DOI: 10.1016/j.ceramint.2013.12.145

[14] O. Lupan, L. Chow, L.K. Ono, B.R. Cuenya, G. Chai, H. Khallaf, S. Park and A. Schulte, Synthesis and characterization of Ag- or Sb-doped ZnO nanorods by a facile hydrothermal route, J. Phys. Chem. C 114 (2010) 12401–12408.

DOI: 10.1021/jp910263n

[15] B.D. Ahn, H.S. Kang, J.H. Kim, G.H. Kim, H.W. Chang and S.Y. Lee, Synthesis and analysis of Ag-doped ZnO, J. Appl. Phys. 100 (2006) 093701.